H. Visser, A. Reniers, V.P.R.V. An Ultra-Wideband Antenna using Button-Cell Batteries

[Abstract] [BibTeX]

2011
Vol. 1, pp.   conference URL  Abstract: A first prototype button-cell batteries UWB antenna has been made, using two CR2032, 3V button cell batteries, copper tape, a lumped element capacitor and inductor and standard PCB FR4 material. The configuration is based upon a microstrip UWB antenna designed by the first author. Measurements show a perfect DC behavior and a fair RF behavior, showing a slightly larger than anticipated reflection coefficient (-7.5dB) as a function of frequency. Through full-wave analysis and experiments a second, improved prototype will be realized. BibTeX:

@conference{H.Visser2011a,
  author = {H. Visser, A. Reniers, V. Pop, R. Vullers},
  title = {An Ultra-Wideband Antenna using Button-Cell Batteries},
  booktitle = {},
  publisher = {},
  year = {2011},
  volume = {1},
  pages = {},
  url = {}
}

H. Visser, R.V. Design Equations for Small Loop-Based Rectennas

[Abstract] [BibTeX]

2011
Vol. 1Loughborough Antennas and Propagation Conference, pp.   conference URL  Abstract: A need exists for small devices, capable of simultaneously receiving data an power. Through connecting one or more Schottky diodes in parallel to a small loop antenna and further employing a capacitor it is possible to receive data and DC power simultaneously. Through using analytical equations the device may be optimized for data and/or power reception. BibTeX:

@conference{H.Visser2011b,
  author = {H. Visser, R. Vullers},
  title = {Design Equations for Small Loop-Based Rectennas},
  booktitle = {Loughborough Antennas and Propagation Conference},
  publisher = {},
  year = {2011},
  volume = {1},
  pages = {},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6114033&matchBoolean%3Dtrue%26searchField%3DSearch_All%26queryText%3D%28%28%28visser%29+AND+vullers%29+AND+loop%29}
}

H. Visser, R.V. A Miniature Printed Antenna With Outer Surface Cable Current Suppression and Low Proximity Effects

[Abstract] [BibTeX]

2011
Vol. 1European Conference on Antennas and Propagation, pp. 1837 – 1841  conference URL  Abstract: A miniature antenna has been designed for use in the 2.45 GHz ISM frequency band. The design, having dimensions 60 mm × 11 mm × 3.6 mm fits within an eye frame. The antenna shows an input impedance that is independent from the connected coaxial cable due to the specially shaped ground plane, including current blocking slots. The antenna performs well in free space as well as in close proximity to the human head due to an encapsulation of the antenna in a dielectric. BibTeX:

@conference{H.Visser2011c,
  author = {H. Visser, R. Vullers},
  title = {A Miniature Printed Antenna With Outer Surface Cable Current Suppression and Low Proximity Effects},
  booktitle = {European Conference on Antennas and Propagation},
  publisher = {},
  year = {2011},
  volume = {1},
  pages = {1837 - 1841},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=5781884&matchBoolean%3Dtrue%26searchField%3DSearch_All%26queryText%3D%28%28%28visser%29+AND+vullers%29+AND+proximity%29}
}

H. Visser, S.K. Radiative RF Power Transfer Solutions for Wireless Sensors

[Abstract] [BibTeX]

2014
Vol. 1International Symposium on Antennas and Propagation , pp. 1401 – 1402  conference URL  Abstract: Two rectennas are presented. One consists of a printed 5? antenna, connected to a loaded voltage doubling rectifier through a LC impedance matching network. The other one consists of a printed loop antenna, complex conjugately impedance-matched to the same rectifier. The second rectenna is reduced in size by a factor of more than four with respect to the first rectenna and showing a 55% RF-to-DC powerconversion efficiency at an input power level of -10 dBm. This is a 5% improvement with respect to the 5?-based rectenna. BibTeX:

@conference{H.Visser2014,
  author = {H. Visser, S. Keyrouz},
  title = {Radiative RF Power Transfer Solutions for Wireless Sensors},
  booktitle = {International Symposium on Antennas and Propagation },
  publisher = {},
  year = {2014},
  volume = {1},
  pages = {1401 - 1402},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6905026&queryText%3Dradiative+RF+power+transfer+solutions+for+wireless+sensors}
}

H. Visser, S. Keyrouz, B.S. Optimized Rectenna Design

[Abstract] [BibTeX]

2015 Wireless Power Transfer
Vol. accepted for publication(), pp.   article URL  Abstract: Design steps are outlined for maximizing the RF-to-dc Power Conversion Efficiency (PCE) of a rectenna. Based on an analysis of the rectifier it turns out that the rectenna should be designed for low frequency and low input power levels, next to being impedance matched to the antenna. It is demonstrated that a rectenna thus designed, using a 50W antenna and lumped element matching network gives a superior PCE compared to state of the art. By omitting the matching network and directly, conjugate impedance matching the antenna to the rectifier, the PCE may be further increased and the rectenna size reduced as is demonstrated with a rectenna prototype measuring only 0.028 squared wavelengths at 868MHz and demonstrating a PCE of 55% for a -10dBm RF input power level. BibTeX:

@article{H.Visser2015,
  author = {H. Visser, S. Keyrouz, B. Smolders},
  title = {Optimized Rectenna Design},
  journal = {Wireless Power Transfer},
  year = {2015},
  volume = {accepted for publication},
  number = {},
  pages = {},
  url = {}
}

H. Visser, V. Pop, R.E.R.Z.R.V. A Miniature Antenna with Low Proximity Effects and Integrated Lithylene Antenna

[Abstract] [BibTeX]

2011
Vol. 1Smart Systems Integration, pp.   conference URL  Abstract: The feasibility of realizing a 2.4-2.5GHz, combined antenna/battery within a volume BibTeX:

@conference{H.Visser2011,
  author = {H. Visser, V. Pop, R. Elfrink, R. Zhou, R. Vullers},
  title = {A Miniature Antenna with Low Proximity Effects and Integrated Lithylene Antenna},
  booktitle = {Smart Systems Integration},
  publisher = {},
  year = {2011},
  volume = {1},
  pages = {},
  url = {}
}

Keyrouz, S. Practical Rectennas: RF Power Harvesting and Transport

[BibTeX]

2014 School: Eindhoven University of Technology  mastersthesis URL  BibTeX:

@mastersthesis{Keyrouz2014,
  author = {S. Keyrouz},
  title = {Practical Rectennas: RF Power Harvesting and Transport},
  school = {Eindhoven University of Technology},
  year = {2014},
  url = {http://alexandria.tue.nl/extra2/774472.pdf}
}

M. Stoopman, S. Keyrouz, H.V.K.P.W.S. Co-Design of a CMOS Rectifier and Small Loop Antenna for Highly Sensitive RF Energy Harvesters

[Abstract] [BibTeX]

2014 IEEE Journal of Solid-State Circuits
Vol. 49(3), pp. 622-634  article URL  Abstract: In this paper, a design method for the co-design and integration of a CMOS rectifier and small loop antenna is described. In order to improve the sensitivity, the antenna-rectifier interface is analyzed as it plays a crucial role in the co-design optimization. Subsequently, a 5-stage cross-connected differential rectifier with a 7-bit binary-weighted capacitor bank is designed and fabricated in standard 90 nm CMOS technology. The rectifier is brought at resonance with a high-Q loop antenna by means of a control loop that compensates for any variation at the antenna-rectifier interface and passively boosts the antenna voltage to enhance the sensitivity. A complementary MOS diode is proposed to improve the harvester’s ability to store and hold energy over a long period of time during which there is insufficient power for rectification. The chip is ESD protected and integrated on a compact loop antenna. Measurements in an anechoic chamber at 868 MHz demonstrate a -27 dBm sensitivity for 1 V output across a capacitive load and 27 meter range for a 1.78 W RF source in an office corridor. The end-to-end power conversion efficiency equals 40% at -17 dBm. BibTeX:

@article{M.Stoopman2014,
  author = {M. Stoopman, S. Keyrouz, H. Visser, K. Philips, W. Serdijn},
  title = {Co-Design of a CMOS Rectifier and Small Loop Antenna for Highly Sensitive RF Energy Harvesters},
  journal = {IEEE Journal of Solid-State Circuits},
  year = {2014},
  volume = {49},
  number = {3},
  pages = {622-634},
  url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6740091&matchBoolean%3Dtrue%26searchField%3DSearch_All%26queryText%3D%28%28stoopman%29+AND+visser%29}
}

M. Stoopman, S. Keyrouz, H.V.W.S. A Self-Calibrating RF Energy Harvester Generating 1V at -26.3dBm

[Abstract] [BibTeX]

2013
Vol. 1Symposium on VLSI Circuits, pp. C226 – 227  conference URL  Abstract: This paper presents a self-calibrating RF energy harvester capable of harvesting at lower input power levels than current state-of-the-art RFharvesters. A 5 stage cross-connected bridge rectifier is brought at resonance with a high-Q loop antenna by means of a 7-bit binary weighted capacitor bank. A control loop compensates any variation in the antenna-rectifier interface and passively boosts the antenna voltage to enhance the sensitivity. The rectifier and capacitor bank have been implemented in standard 90nm CMOS technology, includes ESD protection and are integrated on the antenna. Measurements in an anechoic chamber at 868 MHz show a -26.3 dBm sensitivity for 1V output and 25 meter range for a 1.78 W RF source in an office corridor. The maximum power efficiency of the complete harvester is 31.5%. BibTeX:

@conference{M.Stoopman2013,
  author = {M. Stoopman, S. Keyrouz, H. Visser, W. Serdijn},
  title = {A Self-Calibrating RF Energy Harvester Generating 1V at -26.3dBm},
  booktitle = {Symposium on VLSI Circuits},
  publisher = {},
  year = {2013},
  volume = {1},
  pages = {C226 - 227},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6578672&queryText%3DA+self-calibrating+rf+energy+harvester}
}

Visser, H. Design Considerations for Low-Power, High-Sensitivity Rectennas

[Abstract] [BibTeX]

2014
Vol. 1European Conference on Antennas and Propagation, pp. 2957 – 2960  conference URL  Abstract: Through analysis it is found that the only steps available to maximize the voltage at the input of a rectifying and voltage multiplication circuit for a given low level of power available from the antenna are: Design the rectifier/multiplier circuit for a minimum real part of the input admittance and conjugate match the antenna to the rectifier/multiplier circuit. Use antenna miniaturization up to a level that still yields an acceptable radiation efficiency and start from a small loop antenna. BibTeX:

@conference{Visser2014,
  author = {H. Visser},
  title = {Design Considerations for Low-Power, High-Sensitivity Rectennas},
  booktitle = {European Conference on Antennas and Propagation},
  publisher = {},
  year = {2014},
  volume = {1},
  pages = {2957 - 2960},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6902448&queryText%3Ddesign+considerations+for+low-power+high-sensitivity+rectennas}
}

Visser, H. Far-Field RF Energy Transport

[Abstract] [BibTeX]

2013
Vol. 1Radio and Wireless Symposium, pp. 34 – 36  conference URL  Abstract: For Smart Building Integration many wireless sensors are needed. Far-field RF energy transport may be used to charge the batteries of these sensors. Due to path loss and transmit power limitations the RF power available at the sensors will be very low. By optimizing not only the receiving rectifying antenna, but also the transmitter radiation pattern, based on the propagation channel characteristics, the RF energytransport efficiency will be improved. BibTeX:

@conference{Visser2013,
  author = {H. Visser},
  title = {Far-Field RF Energy Transport},
  booktitle = {Radio and Wireless Symposium},
  publisher = {},
  year = {2013},
  volume = {1},
  pages = {34 - 36},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6486632&queryText%3Dfar+field+rf+energy+transport}
}

Visser, H. Printed Folded Dipole Antenna Design for Rectenna and RFID Applications

[Abstract] [BibTeX]

2013
Vol. 1European Conference on Antennas and Propagation, pp. 2852 – 2855  conference URL  Abstract: An approximate or engineering model for a modified, asymmetric stripfolded dipole antenna is discussed. The modification consists of adding short-circuit strips in the folded dipole arms, thereby giving means for input impedance tuning. This tuning is necessary for directly matching theantenna to the complex input impedance of the rectifier that is connected to the antenna to form a rectifying antenna or rectenna. The engineering model, when implemented in software, results in fast calculation times and allows implementation in an optimization shell for automatic antennasynthesis. To be able to use the antenna/rectenna in close proximity to a metallic object, while maintaining its low profile, the antenna will be placed on a thin EBG structure. First analysis results are demonstrated. BibTeX:

@conference{Visser2013a,
  author = {H. Visser},
  title = {Printed Folded Dipole Antenna Design for Rectenna and RFID Applications},
  booktitle = {European Conference on Antennas and Propagation},
  publisher = {},
  year = {2013},
  volume = {1},
  pages = {2852 - 2855},
  url = {http://ieeexplore.ieee.org.dianus.libr.tue.nl/xpl/articleDetails.jsp?tp=&arnumber=6546821&queryText%3Dprinted+folded+dipole+antenna+design}
}

Visser, H. Approximate Antenna Analysis for CAD

[Abstract] [BibTeX]

2009
Vol.   book URL  Abstract: In this book, Hubregt J. Visser provides an introduction to the fundamentals of antenna design and the implementation of design models. A variety of antennas for wireless applications and communications systems are explained, and the real-life use of the antennas is demonstrated through extensive use of application examples. The author includes discussions on the design process of several antennas, such as intravascular MR Antennas, PCB antennas, RFID antennas, rectennas etc. Furthermore, emphasis is placed on Computer Aided Design (CAD) using approximated models. BibTeX:

@book{Visser2009,
  author = {H. Visser},
  title = {Approximate Antenna Analysis for CAD},
  publisher = {John Wiley & Sons},
  year = {2009},
  volume = {},
  edition = {},
  url = {}
}

Grosinger, J. and Bösch, W. A Passive RFID Sensor Tag Antenna Transducer 2014 Proc. European Conference on Antennas and Propagation  inproceedings   Pachler, W., Bösch, W., Holweg, G. and Hofer, G. A Novel Booster Antenna Design Coupled to a One Square Millimeter Coil-on-Chip RFID Tag Enabling New Medical Applications 2013 Proc. European Mircowave Week  inproceedings   Pachler, W., Grosinger, J., Bösch, W., Greiner, P., Hofer, G. and Holweg, G. An On-Chip Capacitive Coupled RFID Tag 2014 Proc. European Conference on Antennas and Propagation  inproceedings   Pachler, W., Grosinger, J., Bösch, W., Holweg, G. and Steffan, C. A Miniaturized Dual Band RFID Tag 2014 Proc. IEEE RFID Technology and Applications Conference  inproceedings   Pachler, W., Pressel, K., Grosinger, J., Beer, G., Bösch, W., Holweg, G., Zilch, C. and Meindl, M. A Novel 3D Packaging Concept for RF Powered Sensor Grains 2014 Proc. IEEE Electronic Components and Technology Conference  inproceedings   Pachler, W., Russo, I., Bösch, W., Hofer, G., Holweg, G. and Mischitz, M. A Silver Ink-Jet Printed UHF Booster Antenna on Flexible Substratum with Magnetically Coupled RFID Die On-Chip Antenna 2013 Proc. European Conference on Antennas and Propagation  inproceedings  

Sanz-Izquierdo, B., Huang, F., Batchelor, J. and Sobhy, M. Time Domain Methods in Electrodynamics: A Tribute to Wolfgang J. R. Hoefer

[BibTeX]

2008
Vol. 121, pp. 173-187  book   BibTeX:

@book{Sanz-Izquierdo2008,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor and M.I. Sobhy},
  title = {Time Domain Methods in Electrodynamics: A Tribute to Wolfgang J. R. Hoefer},
  publisher = {Springer Verlag},
  year = {2008},
  volume = {121},
  pages = {173--187},
  note = {Study of Single and Dual Band Wearable Metallic Button Antennas for Personal Area Networks (PANs)}
}

Batchelor, J., Chang, T., Voudouris, K. and Langley, R. Microwave Patch Antennas operating at Higher Order Modes

[BibTeX]

1993 ICEAA Conference, pp. 435-438  inproceedings URL  BibTeX:

@inproceedings{Batchelor1993,
  author = {J.C. Batchelor and T.K. Chang and K. Voudouris and R.J. Langley},
  title = {Microwave Patch Antennas operating at Higher Order Modes
},
  booktitle = {ICEAA Conference},
  year = {1993},
  pages = {435--438},
  url = {http://kar.kent.ac.uk/36487/}
}

Batchelor, J., Economou, L., Tsang, K. and Langley, R. Microstrip Antennas for Mobile Communications

[BibTeX]

1996 Proc. 22nd QMW Antenna Symposium,  inproceedings URL  BibTeX:

@inproceedings{Batchelor1996,
  author = {J.C. Batchelor and L. Economou and K.K. Tsang and R.J. Langley},
  title = {Microstrip Antennas for Mobile Communications
},
  booktitle = {Proc. 22nd QMW Antenna Symposium,},
  year = {1996},
  url = {http://kar.kent.ac.uk/36504/}
}

Batchelor, J., Economou, L., Tsang, K. and Langley, R. Microstrip Antennas for Mobile Communications

[BibTeX]

1996 Proc. JINA96 International Antennas Conference, pp. 597-600  inproceedings URL  BibTeX:

@inproceedings{Batchelor1996a,
  author = {J.C. Batchelor and L. Economou and K.K. Tsang and R.J. Langley},
  title = {Microstrip Antennas for Mobile Communications
},
  booktitle = {Proc. JINA96 International Antennas Conference},
  year = {1996},
  pages = {597--600},
  url = {http://kar.kent.ac.uk/36505/}
}

Batchelor, J., Economou, L., Tsang, K. and Langley, R. Patch Antennas for Mobile Communications

[BibTeX]

1995 12th UK National Radio Science/19th QMWC Antennas Symposium,   inproceedings URL  BibTeX:

@inproceedings{Batchelor1995,
  author = {J.C. Batchelor and L. Economou and K.K. Tsang and R.J. Langley},
  title = {Patch Antennas for Mobile Communications
},
  booktitle = {12th UK National Radio Science/19th QMWC Antennas Symposium, },
  year = {1995},
  url = {http://kar.kent.ac.uk/36500/}
}

Batchelor, J. and Langley, R. Switched Dual Mode Patch Antennas for Mobile Communication Systems

[Abstract] [BibTeX]

1994 Microwave Filters and Antennas for Personal Communication Systems, IEE Colloquium   inproceedings URL  Abstract: Many new satellite based services are planned for road vehicles including telephone and data communications, vehicle positioning systems and traffic information. Compact antennas are required to receive all these services. These must be cheap to manufacture, as conformal as possible with the vehicle, offer multiple frequency band operation and a variety of radiation patterns to operate with both geostationary and continuously orbiting satellites. Here the properties of annular ring microstrip patch antennas operating at higher order modes are assessed for use on vehicles in mobile communication systems. The antennas have been studied both theoretically and experimentally to examine the radiated beam shape, gain and the bandwidth for several methods of feeding. The performance of rings printed on different substrates and a glass superstrate are examined BibTeX:

@inproceedings{Batchelor1994,
  author = {J.C. Batchelor and R.J. Langley},
  title = {Switched Dual Mode Patch Antennas for Mobile Communication Systems
},
  booktitle = {Microwave Filters and Antennas for Personal Communication Systems, IEE Colloquium },
  year = {1994},
  url = {http://kar.kent.ac.uk/36494/}
}

Batchelor, J. and Langley, R. Patch Antennas for Mobile Communication Systems

[BibTeX]

1994 IEE Colloquium on Filters and Antennas for Mobile Systems  inproceedings URL  BibTeX:

@inproceedings{Batchelor1994a,
  author = {J.C. Batchelor and R.J. Langley},
  title = {Patch Antennas for Mobile Communication Systems
},
  booktitle = {IEE Colloquium on Filters and Antennas for Mobile Systems},
  year = {1994},
  url = {http://kar.kent.ac.uk/36497/}
}

Batchelor, J. and Langley, R. Bandwidths of Higher Order Mode Patch Antennas

[BibTeX]

1994 20th QMWC Antennas Symposium,  inproceedings URL  BibTeX:

@inproceedings{Batchelor1994b,
  author = {J.C. Batchelor and R.J. Langley},
  title = {Bandwidths of Higher Order Mode Patch Antennas
},
  booktitle = {20th QMWC Antennas Symposium,},
  year = {1994},
  url = {http://kar.kent.ac.uk/36498/}
}

Batchelor, J., Parker, E., Ziai, M., Sanchez-Romaguera, V. and Yeates, S. Ultra thin and transfer tattoo UHF RFID tags

[Abstract] [BibTeX]

2013 Proceedings of PIERS Stockholm 2013
Vol. 1(1)Progress In Electromagnetics Research Symposium (PIERS) (August 2013) Hosted in Stockholm, pp. 1-2  inproceedings URL  Abstract: This paper describes inkjet printing as a digital fabrication tool for the manufacture of RFID tags on flexible and porous substrates (i.e. paper). The RFID tag presented is a single layer, ultrathin UHF tag in the form of a transfer tattoo, [1] which evolved from ultra-thin, substrate insensitive tag designs, [2]. Operation has been demonstrated when mounted direct on the skin with initial read ranges in the region of 1m and subsequent improvements have enabled read range increases. The implications of ink sintering processes for paper based transfer tattoos will be discussed as specifically applied to this work, [3], and resulting patch conductivities and read ranges highlighted for tags printed on tattoo transfer paper, [4]. Recent developments in selective ink layering will be outlined to illustrate the benefits to cost effective fabrication and efficient tattoo patch operation. Finally, work integrating additional components to improve transponder efficiency will be presented and leading to the concept of an ultra-thin battery for power assisted tagging where on-skin read ranges of 6m are possible. The issues for fabrication will be discussed for deposition and fabrication of such ultra-low profile sensitive tattoo tags. BibTeX:

@inproceedings{Batchelor2013,
  author = {J.C. Batchelor and E.A. Parker and M.A. Ziai and V Sanchez-Romaguera and S Yeates},
  title = {Ultra thin and transfer tattoo UHF RFID tags },
  booktitle = {Progress In Electromagnetics Research Symposium (PIERS) (August 2013) Hosted in Stockholm},
  journal = {Proceedings of PIERS Stockholm 2013},
  publisher = {Progress in Electromagnetics Research Symposium (PIERS)},
  year = {2013},
  volume = {1},
  number = {1},
  pages = {1--2},
  url = {http://kar.kent.ac.uk/36682/}
}

Batchelor, J., Rakibet, O., Oyeka, D. and Ziai, M. RFID transfer tattoo tags and Assisted Living

[BibTeX]

2013 IET Seminar on Body-Centric Wireless Communications, pp. 7-7  inproceedings URL  BibTeX:

@inproceedings{Batchelor2013a,
  author = {J.C. Batchelor and O. Rakibet and D. Oyeka and M.A. Ziai},
  title = {RFID transfer tattoo tags and Assisted Living},
  booktitle = {IET Seminar on Body-Centric Wireless Communications},
  year = {2013},
  pages = {7--7},
  url = {http://kar.kent.ac.uk/36396/}
}

Batchelor, J. and Swaisaenyakorn, S. Measurement and Modelling of Body Channels using Motion Capture

[BibTeX]

2011 Seminar on Body Centric Wireless Communications  inproceedings URL  BibTeX:

@inproceedings{Batchelor2011,
  author = {J.C. Batchelor and S. Swaisaenyakorn},
  title = {Measurement and Modelling of Body Channels using Motion Capture},
  booktitle = {Seminar on Body Centric Wireless Communications},
  year = {2011},
  url = {http://kar.kent.ac.uk/28156/}
}

Batchelor, J., Swaisaenyakorn, S. and Miller, J. Personal and Body Area Network Channels between Dual Band Button Antennas

[Abstract] [BibTeX]

2009 Asia-Pacific Microwave Conference 2009, APMC09, SingaporeAsia-Pacific Microwave Conference 2009  inproceedings URL  Abstract: This paper describes an assessment of space diversity for bodyworn Dual Band Metallic Button Antennas. The optimal combination of locations has been assessed according to the received signal envelope, cross-correlation coefficient and diversity gain for the ISM bands at 2.45 and 5.5GHz. Received signal envelopes were combined using the Selection, Maximum Ratio and Equal Gain combining algorithms. Results are taken with both vertical and horizontal polarizations for different body positions with respect to the transmitting antenna. BibTeX:

@inproceedings{Batchelor2009,
  author = {J.C. Batchelor and S. Swaisaenyakorn and J.A. Miller},
  title = {Personal and Body Area Network Channels between Dual Band Button Antennas},
  booktitle = {Asia-Pacific Microwave Conference 2009},
  journal = {Asia-Pacific Microwave Conference 2009, APMC09, Singapore},
  year = {2009},
  url = {http://kar.kent.ac.uk/23581/}
}

Batchelor, J., Tsang, K. and Langley, R. Annular Ring Patch Antennas with Biased Ferrites

[BibTeX]

1996 Alta Frequenza Revista di Elettronica,, pp. 37-39  inproceedings URL  BibTeX:

@inproceedings{Batchelor1996b,
  author = {J.C. Batchelor and K.K. Tsang and R.J. Langley},
  title = {Annular Ring Patch Antennas with Biased Ferrites
},
  booktitle = {Alta Frequenza Revista di Elettronica,},
  year = {1996},
  pages = {37--39},
  url = {http://kar.kent.ac.uk/36503/}
}

Batchelor, J., Tsang, K. and Langley, R. Annular Ring Patch Antennas with Biased Ferrites

[BibTeX]

1995 Proc. ICEAA95 Conference, pp. 19-22  inproceedings URL  BibTeX:

@inproceedings{Batchelor1995a,
  author = {J.C. Batchelor and K.K. Tsang and R.J. Langley},
  title = {Annular Ring Patch Antennas with Biased Ferrites
},
  booktitle = {Proc. ICEAA95 Conference},
  year = {1995},
  pages = {19--22},
  url = {http://kar.kent.ac.uk/36501/}
}

Callaghan, P., Sagor, M.H. and Batchelor, J. Control of ground plane influence on antenna radiation pattern for mobile handheld devices

[Abstract] [BibTeX]

2011 2011 Loughborough Antennas and Propagation Conference (LAPC 2011)2011 Loughborough Antennas & Propagation Conference, pp. 1-4  inproceedings URL  Abstract: This paper presents the effects of a choke-slot on solid ground plane of an antenna, fabricated on FR4 substrate to be used in mobile communication system. Techniques have been discussed to control the ground plane current and reduce any degradation. The simulations and measurements show that introducing a slot on a conventional solid ground plane can significantly improve the radiation pattern of an antenna. Good performance at the Personal Communication Service (PCS 1900) band promises the use of this antenna on personal mobility, advance cellular phone services and wireless communication services. Achieving the maximum gain towards the expected direction for mobile phone application with the help of a choke-slot on antenna’s ground plane demonstrates the effectiveness of this technique. BibTeX:

@inproceedings{Callaghan2011,
  author = {Peter Callaghan and Md. Hasanuzzaman Sagor and J.C. Batchelor},
  title = {Control of ground plane influence on antenna radiation pattern for mobile handheld devices},
  booktitle = {2011 Loughborough Antennas & Propagation Conference},
  journal = {2011 Loughborough Antennas and Propagation Conference (LAPC 2011)},
  publisher = {IEEE},
  year = {2011},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/35845/}
}

Diugwu, C. and Batchelor, J. Complementarity in the Optimisation of RFID Dipole Tag Antennas

[BibTeX]

2007 Proc. IEEE AP-S Int. Symp.IEEE AP-S Int. Symp.,   inproceedings URL  BibTeX:

@inproceedings{Diugwu2007,
  author = {C.A. Diugwu and J.C. Batchelor},
  title = {Complementarity in the Optimisation of RFID Dipole Tag Antennas
},
  booktitle = {IEEE AP-S Int. Symp., },
  journal = {Proc. IEEE AP-S Int. Symp.},
  year = {2007},
  url = {http://kar.kent.ac.uk/6048/}
}

Diugwu, C. and Batchelor, J. Complementarity in the Optimisation of RFID Slot and Patch Tag Antennas

[BibTeX]

2007 Proc. IEEE AP-S Int. Symp.Proc. IEEE AP-S Int. Symp.  inproceedings URL  BibTeX:

@inproceedings{Diugwu2007a,
  author = {C.A. Diugwu and J.C. Batchelor},
  title = {Complementarity in the Optimisation of RFID Slot and Patch Tag Antennas
},
  booktitle = {Proc. IEEE AP-S Int. Symp.},
  journal = {Proc. IEEE AP-S Int. Symp.},
  year = {2007},
  url = {http://kar.kent.ac.uk/6049/}
}

Diugwu, C. and Batchelor, J. Electromagnetic Field Distributions in a Wire Grid Enclosure for RFID Application

[Abstract] [BibTeX]

2006 Antennas and Propagation Society International Symposium 2006, IEEEAntennas and Propagation Society International Symposium 2006, IEEE, pp. 3233-3236  inproceedings URL  Abstract: The electromagnetic field distribution of a wire grid enclosure (WGE) is summarized. Its transmission responses over a range of frequencies are theoretically investigated. The grid is derived from wire elements arranged in uniform rectangular forms of dimension approximately 1/7th the radiation wavelength. Tag antenna performance inside this enclosure is validated with read range measurements BibTeX:

@inproceedings{Diugwu2006,
  author = {C.A. Diugwu and J.C. Batchelor},
  title = {Electromagnetic Field Distributions in a Wire Grid Enclosure for RFID Application
},
  booktitle = {Antennas and Propagation Society International Symposium 2006, IEEE},
  journal = {Antennas and Propagation Society International Symposium 2006, IEEE},
  publisher = {IEEE},
  year = {2006},
  pages = {3233--3236},
  url = {http://kar.kent.ac.uk/9746/}
}

Diugwu, C. and Batchelor, J. Analysis of the Surface Current Distributions in a Dual Band Planar Antenna for Passive RF-ID Tag

[Abstract] [BibTeX]

2005 IEEE Antennas & Propagation Society International Symposium 2005
Vol. 3AAntennas and Propagation Society International Symposium, 2005 IEEE, pp. 459-462  inproceedings URL  Abstract: Measurements are presented on the performance of a novel dual band passive RFID tag antenna constructed from a planar structure which operates at the frequencies of 868 MHz and 2.4 GHz. A study of the surface current distributions of the antenna has been carried out to achieve the optimal location and coupling of the transponder chip. Results are presented for the surface current distributions, resonant frequencies and read range. Data for the study are calculated using CST microwave studio which applies the finite integral technique on approximated perfect boundaries of the planar structure. BibTeX:

@inproceedings{Diugwu2005,
  author = {C.A. Diugwu and J.C. Batchelor},
  title = {Analysis of the Surface Current Distributions in a Dual Band Planar Antenna for Passive RF-ID Tag
},
  booktitle = {Antennas and Propagation Society International Symposium, 2005 IEEE},
  journal = {IEEE Antennas & Propagation Society International Symposium 2005},
  year = {2005},
  volume = {3A},
  pages = {459--462},
  url = {http://kar.kent.ac.uk/8836/}
}

Diugwu, C., Batchelor, J. and Langley, R. Dual-Band RFID Tag Antenna

[BibTeX]

2005 IEEE LAPC Conference, pp. 225-228  inproceedings URL  BibTeX:

@inproceedings{Diugwu2005a,
  author = {C.A. Diugwu and J.C. Batchelor and R.J. Langley},
  title = {Dual-Band RFID Tag Antenna
},
  booktitle = {IEEE LAPC Conference},
  year = {2005},
  pages = {225--228},
  url = {http://kar.kent.ac.uk/8877/}
}

Diugwu, C., Batchelor, J., Langley, R. and Fogg, M. Planar Antenna for Passive Radio Frequency Identification [RFID] Tags

[BibTeX]

2004 2004 IEEE Africon, 7th Africon Conference in Africa
Vol. 12004 IEEE Africon, 7th Africon Conference in Africa, pp. 21-24  inproceedings URL  BibTeX:

@inproceedings{Diugwu2004,
  author = {C.A. Diugwu and J.C. Batchelor and R.J. Langley and M. Fogg},
  title = {Planar Antenna for Passive Radio Frequency Identification [RFID] Tags
},
  booktitle = {2004 IEEE Africon, 7th Africon Conference in Africa},
  journal = {2004 IEEE Africon, 7th Africon Conference in Africa},
  year = {2004},
  volume = {1},
  pages = {21--24},
  url = {http://kar.kent.ac.uk/8690/}
}

Henry, M., Free, C., Sanz-Izquierdo, B., Batchelor, J. and Young, P. Photo-Imageable Thick-Film Circuits up to 100 GhZ

[BibTeX]

2006 39th International Symposium on Microelectronics, IMAPS, pp. 230-236  inproceedings URL  BibTeX:

@inproceedings{Henry2006,
  author = {M. Henry and C.E. Free and B. Sanz-Izquierdo and J.C. Batchelor and P.R. Young},
  title = {Photo-Imageable Thick-Film Circuits up to 100 GhZ
},
  booktitle = {39th International Symposium on Microelectronics, IMAPS},
  year = {2006},
  pages = {230--236},
  url = {http://kar.kent.ac.uk/9818/}
}

Langley, R., Batchelor, J. and Voudouris, K. Dual Frequency Band Annular Ring Patches

[BibTeX]

1993 IEE Colloquium on Multiband Antennas  inproceedings URL  BibTeX:

@inproceedings{Langley1993,
  author = {R.J. Langley and J.C. Batchelor and K. Voudouris},
  title = {Dual Frequency Band Annular Ring Patches
},
  booktitle = {IEE Colloquium on Multiband Antennas},
  year = {1993},
  url = {http://kar.kent.ac.uk/36485/}
}

Langley, R., Batchelor, J. and Voudouris, K. Performance of microstrip loop antenna arrays

[Abstract] [BibTeX]

1993
Vol. 2Antennas and Propagation, 1993., Eighth International Conference , pp. 724-727  inproceedings URL  Abstract: A number of mobile satellite systems are proposed for service in the late 1990s. A study of concentric annular ring arrays is reported in which the rings are excited in various modes, resulting in toroidal beams pointing at different elevation angles. Switching between modes can provide a degree of beam steering. The gain of a single patch was 5-7 dB typically. However, this was found to be sensitive to the size of the ground plane on which it was mounted and this variation in gain has been investigated. A theoretical study is presented of a 4 element stacked array of concentric ring elements in which a degree of beam steering is attained by switching modes BibTeX:

@inproceedings{Langley1993a,
  author = {R.J. Langley and J.C. Batchelor and K. Voudouris},
  title = {Performance of microstrip loop antenna arrays },
  booktitle = {Antennas and Propagation, 1993., Eighth International Conference },
  year = {1993},
  volume = {2},
  pages = {724--727},
  url = {http://kar.kent.ac.uk/36490/}
}

Low, L., Batchelor, J., Heaton, R. and Chen, N. Dual Patch Microstrip Fed Antenna with Wide Bandwidth

[Abstract] [BibTeX]

2009 Proc. Loughborough Antennas & Propagation Conference, LAPC 2009, LoughboroughLoughborough Antennas & Propagation Conference, LAPC 2009, pp. 420-432  inproceedings URL  Abstract: Planar inverted F antennas (PIFA) and micro-strip antennas are widely used in wireless devices as they can easily be integrated or hidden within wireless terminals. Conventional PIFA and micro-strip antenna designs typically offer narrow bandwidth of about 3-8 It has been proposed that the bandwidth of the PIFA can be increased by reducing the ground plane size and through the use of various feeding methods or stacked patches. Recently, some of these methods include using passive elements. Numerous studies have also been carried out to enhance the bandwidth of the conventional micro-strip antenna. Most of the proposed methods involve modification to the feeding structure or the inclusion of shorting post. While all the above mentioned methods offer various level of enhancement in operating bandwidth, this poster presents a wideband antenna using a combination of the various known methods to realise an antenna for use within the UHF band. BibTeX:

@inproceedings{Low2009,
  author = {L. Low and J.C. Batchelor and R. Heaton and N. Chen},
  title = {Dual Patch Microstrip Fed Antenna with Wide Bandwidth},
  booktitle = {Loughborough Antennas & Propagation Conference, LAPC 2009},
  journal = {Proc. Loughborough Antennas & Propagation Conference, LAPC 2009, Loughborough},
  year = {2009},
  pages = {420--432},
  url = {http://kar.kent.ac.uk/23579/}
}

Mathew, T., Ziai, M. and Batchelor, J. RCS and Read Range of a UHF RFID Tag

[Abstract] [BibTeX]

2010 Proc. 2010 Asia-Pacific International Symposium on Electromagnetic Compatibility2010 Asia-Pacific International Symposium on Electromagnetic Compatibility, pp. 467-469  inproceedings URL  Abstract: The development of a novel RFID tag operating at 869 MHz and its performance evaluation using simulated Radar Cross Section (RCS) are presented. The RCS variations of the tag antenna are evaluated over azimuth and elevation angular ranges for three cases of load: short, matched load and open. The tag exhibits appreciably good differential RCS between its switching states over wide azimuth angular ranges and over the entire elevation angular ranges. The measured read range variations over the azimuth and elevation angular ranges are also presented to validate the simulated results. BibTeX:

@inproceedings{Mathew2010,
  author = {T. Mathew and M.A. Ziai and J.C. Batchelor},
  title = {RCS and Read Range of a UHF RFID Tag},
  booktitle = {2010 Asia-Pacific International Symposium on Electromagnetic Compatibility},
  journal = {Proc. 2010 Asia-Pacific International Symposium on Electromagnetic Compatibility},
  year = {2010},
  pages = {467--469},
  url = {http://kar.kent.ac.uk/24264/}
}

Miller, J. and Batchelor, J. Body Channel Characterisation using Dual Band utton Antennas

[Abstract] [BibTeX]

2009 Proc. 3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, Berlin, 23-27 March 20093rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, pp. 958-961  inproceedings URL  Abstract: In this paper it is shown that creeeping waves cause for transmission around the human body using a Metallic Button Antenna. This study indicates that the human body can actually enhance received power over that of free space. A small, unobtrusive, dual-band antenna is used in the measurement and characterisation of On-body communication channels. Measurements are performed on a human subject and a free space phantom model with the effects of the body on the communication channel being discussed. BibTeX:

@inproceedings{Miller2009,
  author = {J.A. Miller and J.C. Batchelor},
  title = {Body Channel Characterisation using Dual Band utton Antennas},
  booktitle = {3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009},
  journal = {Proc. 3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, Berlin, 23-27 March 2009},
  year = {2009},
  pages = {958--961},
  url = {http://kar.kent.ac.uk/23312/}
}

Miller, J. and Batchelor, J. Body channel characterisation using dual band button antennas

[Abstract] [BibTeX]

2009 European Conference on Antennas and Propagation, EuCAP 2009, Proceedings3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, pp. 958-961  inproceedings URL  Abstract: In this paper it is shown that creeping waves cause for transmission around the human body using a metallic button antenna. This study indicates that the human body can actually enhance received power over that of free space. A small, unobtrusive, dual-band antenna is used in the measurement and characterisation of on-body communication channels. Measurements are performed on a human subject and a free space phantom model with the effects of the body on the communication channel being discussed. BibTeX:

@inproceedings{Miller2009a,
  author = {J.A Miller and J.C. Batchelor},
  title = {Body channel characterisation using dual band button antennas},
  booktitle = {3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009},
  journal = {European Conference on Antennas and Propagation, EuCAP 2009, Proceedings},
  year = {2009},
  pages = {958--961},
  url = {http://kar.kent.ac.uk/35797/}
}

Miller, J., Batchelor, J., Sanz-Izquierdo, B. and Sobhy, M. Modelling of Wearable Antennas and Channels for Transmission through the Human Body

[Abstract] [BibTeX]

2008 IEEE MTT-S International Mini-Symposium on Electromagnetics and Network Theory and their Microwave Technology Applications, Munich, 8-9 October 2008IEEE MTT-S International Mini-Symposium on Electromagnetics and Network Theory and their Microwave Technology Applications  inproceedings URL  Abstract: As personal communications develop further, there is need to develop wearable antennas that can communicate with wireless LANS, Blue Tooth and other digital systems. Since these antennas will be close to the human body, the properties of the channels they are communicating through must be evaluated together with the enteraction between the channel and the antennas and between the antennas themselves. In order to include this information in the simulation of entire digital communications systems, system models for the antennas and the human body channel must be developed. The paper gives results of measurements on a single antenna and two antennas when placed simultaneously on the human body. Methods of developing system models for the antennas and the channel are explained. BibTeX:

@inproceedings{Miller2008,
  author = {J.A. Miller and J.C. Batchelor and B. Sanz-Izquierdo and M.I. Sobhy},
  title = {Modelling of Wearable Antennas and Channels for Transmission through the Human Body},
  booktitle = {IEEE MTT-S International Mini-Symposium on Electromagnetics and Network Theory and their Microwave Technology Applications},
  journal = {IEEE MTT-S International Mini-Symposium on Electromagnetics and Network Theory and their Microwave Technology Applications, Munich, 8-9 October 2008},
  year = {2008},
  url = {http://kar.kent.ac.uk/23321/}
}

Nechayev, Y., Constantinou, C., Swaisaenyakorn, S., Rakibet, O., Batchelor, J., Hall, P., Parini, C. and Hunt, J. Use of Motion Capture for Path Gain Modelling of Millimetre-Wave On-Body Communication Links

[Abstract] [BibTeX]

2012 Antennas and Propagation (ISAP), 2012 International Symposium, pp. 987-990  inproceedings URL  Abstract: In this paper a motion capture system is employed in order to record the position and orientation of body-worn antennas as the body moves. This geometrical data then is used to calculate free space path gain between the antennas. The results are compared to the measured path gain and then the usefulness of this approach to channel characterisation is discussed. BibTeX:

@inproceedings{Nechayev2012,
  author = {Y Nechayev and C Constantinou and S. Swaisaenyakorn and O Rakibet and J.C. Batchelor and P Hall and C Parini and J. Hunt},
  title = {Use of Motion Capture for Path Gain Modelling of Millimetre-Wave On-Body Communication Links
},
  booktitle = {Antennas and Propagation (ISAP), 2012 International Symposium},
  year = {2012},
  pages = {987--990},
  url = {http://kar.kent.ac.uk/36408/}
}

Rakibet, O., Oyeka, D. and Batchelor, J. Passive RFID switches for assistive technologies

[Abstract] [BibTeX]

2013 Antennas and Propagation (EuCAP), 2013 7th European Conference, pp. 1917-1920  inproceedings URL  Abstract: RFID tag designs with future applications for passive wireless tongue controlled switching are presented. Switching discrimination in read range is observed with the tongue touching and separated from a tag mounted on the hard palate of the mouth. Further a degree of proximity sensing is observed when the tongue is different distances from the tag. BibTeX:

@inproceedings{Rakibet2013,
  author = {O Rakibet and D. Oyeka and J.C. Batchelor},
  title = {Passive RFID switches for assistive technologies},
  booktitle = {Antennas and Propagation (EuCAP), 2013 7th European Conference},
  year = {2013},
  pages = {1917--1920},
  url = {http://kar.kent.ac.uk/36398/}
}

Rakibet, O.O. and Batchelor, J. Electromagnetic bandgap (EBG) structures with TiO2 substrate

[Abstract] [BibTeX]

2012 2012 IEEE Asia-Pacific Conference on Antennas and Propagation, pp. 199-200  inproceedings URL  Abstract: Thickness of structures plays a big role on body-worn antenna systems in terms of conformity. On EBG structure design where it is placed onto body, using a high permittivity substrate such as TiO2 brings an opportunity to decrease the thickness of the structure. BibTeX:

@inproceedings{Rakibet2012,
  author = {Osman Ozgur Rakibet and J.C. Batchelor},
  title = {Electromagnetic bandgap (EBG) structures with TiO2 substrate},
  booktitle = {2012 IEEE Asia-Pacific Conference on Antennas and Propagation},
  year = {2012},
  pages = {199--200},
  url = {http://kar.kent.ac.uk/35813/}
}

Rakibet, O.O., Batchelor, J. and Kelly, S. Passive stretchable RFID tag

[Abstract] [BibTeX]

2012 2012 Loughborough Antennas & Propagation Conference (LAPC), pp. 1-4  inproceedings URL  Abstract: This paper illustrates the idea of passive strain gauge wireless sensors. The sensors use the principle of detuning slots as a surrounding patch is stretched. The application of these devices could be as control actuators for disabled people BibTeX:

@inproceedings{Rakibet2012a,
  author = {Osman Ozgur Rakibet and J.C. Batchelor and S.W. Kelly},
  title = {Passive stretchable RFID tag},
  booktitle = {2012 Loughborough Antennas & Propagation Conference (LAPC)},
  year = {2012},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/35865/}
}

Sanz-Izquierdo, B. and Batchelor, J. E-Plane Cut UWB Monopole

[BibTeX]

2007 Proc. 2007 Loughborough Antennas and Propagation Conference2007 Loughborough Antennas and Propagation Conference, pp. 141-144  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2007,
  author = {B. Sanz-Izquierdo and J.C. Batchelor},
  title = {E-Plane Cut UWB Monopole
},
  booktitle = {2007 Loughborough Antennas and Propagation Conference},
  journal = {Proc. 2007 Loughborough Antennas and Propagation Conference},
  year = {2007},
  pages = {141--144},
  url = {http://kar.kent.ac.uk/6109/}
}

Sanz-Izquierdo, B. and Batchelor, J. WLAN Jacket Mounted Antenna

[BibTeX]

2007 Proc. 2007 IEEE International Workshop on Antenna Technology, iWAT07, Cambridge, UK2007 IEEE International Workshop on Antenna Technology, iWAT07, pp. 57-60  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2007a,
  author = {B. Sanz-Izquierdo and J.C. Batchelor},
  title = {WLAN Jacket Mounted Antenna
},
  booktitle = {2007 IEEE International Workshop on Antenna Technology, iWAT07},
  journal = {Proc. 2007 IEEE International Workshop on Antenna Technology, iWAT07, Cambridge, UK},
  year = {2007},
  pages = {57--60},
  url = {http://kar.kent.ac.uk/6459/}
}

Sanz-Izquierdo, B., Batchelor, J. and Langley, R. Broadband Multi-Function Planar PIFA Antenna

[BibTeX]

2005 Proc. LAPC Conference, Loughborough, pp. 209-212  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2005,
  author = {B. Sanz-Izquierdo and J.C. Batchelor and R.J. Langley},
  title = {Broadband Multi-Function Planar PIFA Antenna
},
  booktitle = {Proc. LAPC Conference, Loughborough},
  year = {2005},
  pages = {209--212},
  url = {http://kar.kent.ac.uk/8856/}
}

Sanz-Izquierdo, B., Batchelor, J. and Langley, R. Multiband Printed PIFA Antennas for Wireless Picocell Basestations

[Abstract] [BibTeX]

2005 Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop onAntenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on, pp. 205-208  inproceedings URL  Abstract: Two novel multi-band PIFA (planar inverted-F) antennas are presented, showing simulated modal current distributions and measured input impedance. All major wireless communications bands have been included and measurements show the radiation patterns to have good H-plane omni-directionality at all bands. Possible applications for the antenna are in passive indoor repeater stations for personal communications or for vehicle mounting for telematics. BibTeX:

@inproceedings{Sanz-Izquierdo2005a,
  author = {B. Sanz-Izquierdo and J.C. Batchelor and R.J. Langley},
  title = {Multiband Printed PIFA Antennas for Wireless Picocell Basestations
},
  booktitle = {Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on},
  journal = {Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on},
  year = {2005},
  pages = {205--208},
  url = {http://kar.kent.ac.uk/8923/}
}

Sanz-Izquierdo, B., Batchelor, J. and Parker, E. Integration of Antennas and High Impedance Surfaces in Ceramic Body Armour Plates

[BibTeX]

2011 Proc. IEEE International Conference on Microwave Technology and Computational Electromagnetics (ICMICE2011)IEEE International Conference on Microwave Technology and Computational Electromagnetics (ICMICE2011), pp. 77-80  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2011,
  author = {B. Sanz-Izquierdo and J.C. Batchelor and E.A. Parker},
  title = {Integration of Antennas and High Impedance Surfaces in Ceramic Body Armour Plates},
  booktitle = {IEEE International Conference on Microwave Technology and Computational Electromagnetics (ICMICE2011)},
  journal = {Proc. IEEE International Conference on Microwave Technology and Computational Electromagnetics (ICMICE2011)},
  year = {2011},
  pages = {77--80},
  url = {http://kar.kent.ac.uk/27900/}
}

Sanz-Izquierdo, B., Batchelor, J. and Sobhy, M. Compact UWB Wearable Antenna

[BibTeX]

2007 Proc. 2007 Loughborough Antennas and Propagation ConferenceLoughborough Antennas and Propagation Conference 2007, pp. 121-124  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2007b,
  author = {B. Sanz-Izquierdo and J.C. Batchelor and M.I. Sobhy},
  title = {Compact UWB Wearable Antenna
},
  booktitle = {Loughborough Antennas and Propagation Conference 2007},
  journal = {Proc. 2007 Loughborough Antennas and Propagation Conference},
  year = {2007},
  pages = {121--124},
  url = {http://kar.kent.ac.uk/6032/}
}

Sanz-Izquierdo, B., Huang, F. and Batchelor, J. Wearable Dual Band Button Antennas

[BibTeX]

2006 Loughborough Antennas & Propagation Conference (LAPC), pp. 33-35  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2006,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor},
  title = {Wearable Dual Band Button Antennas
},
  booktitle = {Loughborough Antennas & Propagation Conference (LAPC)},
  year = {2006},
  pages = {33--35},
  url = {http://kar.kent.ac.uk/10094/}
}

Sanz-Izquierdo, B., Huang, F. and Batchelor, J. Dual Band Wearable PIFA

[BibTeX]

2006 Loughborough Antennas & Propagation Conference (LAPC), pp. 37-39  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2006a,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor},
  title = {Dual Band Wearable PIFA
},
  booktitle = {Loughborough Antennas & Propagation Conference (LAPC)},
  year = {2006},
  pages = {37--39},
  url = {http://kar.kent.ac.uk/9737/}
}

Sanz-Izquierdo, B., Huang, F. and Batchelor, J. Dual-Band Button Antennas for Wearable Applications

[Abstract] [BibTeX]

2006 2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT) 2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT) , pp. 132-135  inproceedings URL  Abstract: A novel structure for wearable WLAN applications is presented. This antenna is a top loaded monopole and is shaped as a button. The antenna is easily disguised and is less sensitive to the clothing fabric than printed patches. The antenna is dual band at 2400MHz and 5200MHz with the onmi-directional radiation patterns required for transmission with other wearable devices located both on and off a user’s body. BibTeX:

@inproceedings{Sanz-Izquierdo2006b,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor},
  title = {Dual-Band Button Antennas for Wearable Applications
},
  booktitle = {2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT) },
  journal = {2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT) },
  year = {2006},
  pages = {132--135},
  url = {http://kar.kent.ac.uk/9742/}
}

Sanz-Izquierdo, B., Huang, F. and Batchelor, J. Small Size Wearable Button Antenna

[Abstract] [BibTeX]

2006 Antennas and Propagation, 2006. EuCAP 2006. First European Conference onEuropean Conference on Antennas and Propagation EuCAP06, pp. 1-4  inproceedings URL  Abstract: A novel small size wearable antenna for WLAN applications is proposed in this paper. The antenna structure is based on a previous development and achieves lower size by implementing different miniaturization techniques. The radiating structure has the shape and dimensions of a standard denim jeans button and is made up of a button shaped cylindrical structure and a top metal disc connected to the ground plane. The antenna is also filled by a dielectric material and an extra shorting via connects the two top parallel plates. The structure and dimensions achieved are those of a standard metal button with greater deal of camouflage and rigidness than previous wearable antenna developments. The proposed wearable antenna is designed for 2.4 GHz and 5 GHz with an omni-directional pattern required for transmission with other wearable devices located across the body. BibTeX:

@inproceedings{Sanz-Izquierdo2006c,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor},
  title = {Small Size Wearable Button Antenna
},
  booktitle = {European Conference on Antennas and Propagation EuCAP06},
  journal = {Antennas and Propagation, 2006. EuCAP 2006. First European Conference on},
  year = {2006},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/9993/}
}

Sanz-Izquierdo, B., Huang, F., Batchelor, J. and Sobhy, M. Compact Antenna for WLAN On-Body Applications

[Abstract] [BibTeX]

2006 2006 European Microwave Conference, Vols 1-42006 European Microwave Conference, Vols 1-4, pp. 819-822  inproceedings URL  Abstract: A novel wearable antenna for WLAN applications is presented in this paper. The antenna is made up of a button shape cylindrical structure and a central metal disc connected to the metal ground plane. The structure and dimensions achieved are those of a standard metal button with greater deal of camouflage and rigidness than previous wearable antenna developments [1], [2]. The proposed wearable antenna is designed for 2.4 GHz and 5 GHz with the onmidirectional pattern required for transmission with other wearable devices located across the body. BibTeX:

@inproceedings{Sanz-Izquierdo2006d,
  author = {B. Sanz-Izquierdo and F. Huang and J.C. Batchelor and M.I. Sobhy},
  title = {Compact Antenna for WLAN On-Body Applications
},
  booktitle = {2006 European Microwave Conference, Vols 1-4},
  journal = {2006 European Microwave Conference, Vols 1-4},
  publisher = {IEEE},
  year = {2006},
  pages = {819--822},
  url = {http://kar.kent.ac.uk/9119/}
}

Sanz-Izquierdo, B., Larter, D. and Batchelor, J. Safety Glasses RFID Antennas

[Abstract] [BibTeX]

2009 2009 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting
Vol. Part 1Antennas and Propagation Society International Symposium, IEEE, APSURSI ’09, pp. 73-76  inproceedings URL  Abstract: This paper investigates the performance of RFID antennas on safety glasses. Dipole antennas have been designed to match an RFID chip and have been placed in different locations on standard safety glasses. The performance of the antenna is evaluated through simulations and measurements. Top center location is found to be best for optimal transmission in free space and when the glasses are worn. Reading range decreases by around 60% when the antenna is in close proximity to the human body. BibTeX:

@inproceedings{Sanz-Izquierdo2009,
  author = {B. Sanz-Izquierdo and D. Larter and J.C. Batchelor},
  title = {Safety Glasses RFID Antennas},
  booktitle = {Antennas and Propagation Society International Symposium, IEEE, APSURSI '09},
  journal = {2009 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting},
  year = {2009},
  volume = {Part 1},
  pages = {73--76},
  url = {http://kar.kent.ac.uk/23283/}
}

Sanz-Izquierdo, B., Parker, E., Batchelor, J. and Miller, J. Body Armour with Integral High Impedance Surface

[Abstract] [BibTeX]

2011 Proc. 5th European Conference on Antennas and Propagation (EUCAP)5th European Confernce on Antennas and Propagation (EUCAP), pp. 1061-1064  inproceedings URL  Abstract: This paper describes the performance of high impedance surfaces (HIS) integrated into body armour equipment. A protective insert made of Aramid material and a metallic woven layer is used as the dielectric material with a metallic ground plane of the HIS. The frequency selective layer added to create the high impedance surface consists of a 15×15 array of interwoven spiral elements capable of reducing size of the cell by over 98% compare to the typical square patch element. The HIS has been designed to operate at around the 400MHz band TETRA employed by the police and emergency services in Europe. The HIS is able to improve the matching of the antenna by over 7dB compared to the antenna mounted directly on the armour vest. The paper includes simulations and experiments. BibTeX:

@inproceedings{Sanz-Izquierdo2011a,
  author = {B. Sanz-Izquierdo and E.A. Parker and J.C. Batchelor and J.A. Miller},
  title = {Body Armour with Integral High Impedance Surface},
  booktitle = {5th European Confernce on Antennas and Propagation (EUCAP)},
  journal = {Proc. 5th European Conference on Antennas and Propagation (EUCAP)},
  year = {2011},
  pages = {1061--1064},
  url = {http://kar.kent.ac.uk/28072/}
}

Sanz-Izquierdo, B., Sobhy, M. and Batchelor, J. UWB Wearable Button Antenna

[Abstract] [BibTeX]

2006 Antennas and Propagation, 2006. EuCAP 2006. First European Conference on Antennas and Propagation, 2006. EuCAP 2006. First European Conference on, pp. 1-4  inproceedings URL  Abstract: This paper reports a novel UWB antenna suitable for wireless on body applications. The antenna is based on previous studies of wearable button antennas and uses the circular metal nail employed in some buttons to create the radiating element of the antenna. The visible part of the antenna was fabricated using PTFE, although other dielectric or plastic material could be used. The novel antenna is intended for textile jackets where the button structure can be easily camouflaged and disregarded as a plastic button. The antenna is fed by a microstrip line and denim was used as the substrate as well as the superstrate that hides the feeding. The antenna achieves the 3.1GHz to 10.6GHz bandwidth required for the ultra-wide-band technology. The radiation patterns are those of a planar circular monopole antenna with no significant deleterious effect of the dielectric structure on the far-field patterns. BibTeX:

@inproceedings{Sanz-Izquierdo2006e,
  author = {B. Sanz-Izquierdo and M.I. Sobhy and J.C. Batchelor},
  title = {UWB Wearable Button Antenna
},
  booktitle = { Antennas and Propagation, 2006. EuCAP 2006. First European Conference on},
  journal = { Antennas and Propagation, 2006. EuCAP 2006. First European Conference on},
  year = {2006},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/10078/}
}

Sanz-Izquierdo, B., Wu, L., Batchelor, J. and Young, P. Textile Integrated Waveguide Slot Antenna

[Abstract] [BibTeX]

2010 Proc. IEEE International Symposium on Antennas and PropagationIEEE International Symposium on Antennas and Propagation, pp. 1-4  inproceedings URL  Abstract: Rectangular waveguides (RWGs) are low loss guiding structures whose characteristics and advantages are well known. At microwave frequencies, they are traditionally found as hollow waveguides. A number of researchers have proposed the integration of RWGs to planar microwave circuits using multilayer LTCC, multi- and single-layer microwave laminates and photoimageable thick films. These so-called substrate integrated guides (SIW) result in dielectric filled rectangular waveguide and as such have a width reduction of epsilonr-1/2 over conventional waveguide. Several researchers have investigated microwave antennas in substrate-integrated waveguide technology. BibTeX:

@inproceedings{Sanz-Izquierdo2010,
  author = {B. Sanz-Izquierdo and L. Wu and J.C. Batchelor and P.R. Young},
  title = {Textile Integrated Waveguide Slot Antenna},
  booktitle = {IEEE International Symposium on Antennas and Propagation},
  journal = {Proc. IEEE International Symposium on Antennas and Propagation},
  year = {2010},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/25518/}
}

Sanz-Izquierdo, B., Xu, J. and Batchelor, J. Elliptical Antenna with Circular Cuts for UWB Applications

[BibTeX]

2007 Proc. 2007 IEEE International Workshop on Antenna Technology, iWAT072007 IEEE International Workshop on Antenna Technology, iWAT07, pp. 455-458  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2007c,
  author = {B. Sanz-Izquierdo and J. Xu and J.C. Batchelor},
  title = {Elliptical Antenna with Circular Cuts for UWB Applications
},
  booktitle = {2007 IEEE International Workshop on Antenna Technology, iWAT07},
  journal = {Proc. 2007 IEEE International Workshop on Antenna Technology, iWAT07},
  year = {2007},
  pages = {455--458},
  url = {http://kar.kent.ac.uk/6062/}
}

Sanz-Izquierdo, B., Young, P., Bai, Q. and Batchelor, J. Compact Dual Layer UWB Antennas

[BibTeX]

2006 Loughborough Antennas & Propagation Conference (LAPC), pp. 233-235  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2006f,
  author = {B. Sanz-Izquierdo and P.R. Young and Q. Bai and J.C. Batchelor},
  title = {Compact Dual Layer UWB Antennas
},
  booktitle = {Loughborough Antennas & Propagation Conference (LAPC)},
  year = {2006},
  pages = {233--235},
  url = {http://kar.kent.ac.uk/9120/}
}

Sanz-Izquierdo, B., Young, P., Bai, Q. and Batchelor, J. Compact UWB Monopole for System-on-Package Applications

[Abstract] [BibTeX]

2006 2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT)2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT), pp. 68-71  inproceedings URL  Abstract: A novel compact, dual layer UWB monopole antenna is presented. This low profile ultra-wideband antenna is fed by a 50 omega shielded strip-line with an array of metal vias making the conducting walls. A circular shaped monopole is the radiating element. The dual layer, shielded strip line feeding design characteristic of the antenna allows for integration in multilayer System-on-Package technologies. The ultra-wideband, monopole characteristics of the antenna are confirmed experimentally. BibTeX:

@inproceedings{Sanz-Izquierdo2006g,
  author = {B. Sanz-Izquierdo and P.R. Young and Q. Bai and J.C. Batchelor},
  title = {Compact UWB Monopole for System-on-Package Applications
},
  booktitle = {2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT)},
  journal = {2006 IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials (IWAT)},
  publisher = {IEEE},
  year = {2006},
  pages = {68--71},
  url = {http://kar.kent.ac.uk/9121/}
}

Sanz-Izquierdo, B., Young, P. and Batchelor, J. E-Band Waveguide Slot Array using Thick Film Processing

[BibTeX]

2006 Loughborough Antennas & Propagation Conference (LAPC), pp. 389-391  inproceedings URL  BibTeX:

@inproceedings{Sanz-Izquierdo2006h,
  author = {B. Sanz-Izquierdo and P.R. Young and J.C. Batchelor},
  title = {E-Band Waveguide Slot Array using Thick Film Processing
},
  booktitle = {Loughborough Antennas & Propagation Conference (LAPC)},
  year = {2006},
  pages = {389--391},
  url = {http://kar.kent.ac.uk/9744/}
}

Sanz-Izquierdo, B., Young, P., Grigoropoulos, N., Batchelor, J. and Langley, R. Slot Antenna on C Type Compact Substrate Integrated Waveguide

[Abstract] [BibTeX]

2005
Vol. 1-335th European Microwave Conference, Vols 1-3, Conference Proceedings , pp. 469-472  inproceedings URL  Abstract: A slot antenna using a C type substrate integrated waveguide is presented in this paper. By using the C type compact waveguide it is possible to produce a smaller waveguide slot antenna than the one in standard substrate integrated waveguide. The device can be easily integrated with other microwave or millimetre wave devices. BibTeX:

@inproceedings{Sanz-Izquierdo2005b,
  author = {B. Sanz-Izquierdo and P.R. Young and N. Grigoropoulos and J.C. Batchelor and R.J. Langley},
  title = {Slot Antenna on C Type Compact Substrate Integrated Waveguide
},
  booktitle = {35th European Microwave Conference, Vols 1-3, Conference Proceedings },
  publisher = {Horizon house},
  year = {2005},
  volume = {1-3},
  pages = {469--472},
  url = {http://kar.kent.ac.uk/8955/}
}

Sanz-Izquierdo, B., Young, P., Grigoropoulos, N., Batchelor, J. and Langley, R. Slot Array Antenna using Folded Waveguides

[Abstract] [BibTeX]

2005 Loughborough Antennas and Propagation Conference  inproceedings URL  Abstract: A highly compact slot array antenna using substrate integrated folded waveguides (SIFW) is proposed in this paper. The device has three key components: a non radiating SMA to standard waveguide transition, a power divider from standard waveguide to folded waveguides, and slot arrays on the folded waveguide. The antenna is built using two substrates aligned with conducting vias which makes the device, low profile, small size, low cost and easy to manufacture. BibTeX:

@inproceedings{Sanz-Izquierdo2005c,
  author = {B. Sanz-Izquierdo and P.R. Young and N. Grigoropoulos and J.C. Batchelor and R.J. Langley},
  title = {Slot Array Antenna using Folded Waveguides
},
  booktitle = {Loughborough Antennas and Propagation Conference},
  year = {2005},
  url = {http://kar.kent.ac.uk/8958/}
}

Sobhy, M., Sanz-Izquierdo, B. and Batchelor, J. Deriving system and circuit models from results of electromagnetic simulators

[BibTeX]

2007 2007 Time Domain Methods in Modern Engineering Electrodynamics, Munich 2007 Time Domain Methods in Modern Engineering Electrodynamics, Munich   inproceedings URL  BibTeX:

@inproceedings{Sobhy2007,
  author = {M.I. Sobhy and B. Sanz-Izquierdo and J.C. Batchelor},
  title = {Deriving system and circuit models from results of electromagnetic simulators},
  booktitle = {2007 Time Domain Methods in Modern Engineering Electrodynamics, Munich },
  journal = {2007 Time Domain Methods in Modern Engineering Electrodynamics, Munich },
  year = {2007},
  url = {http://kar.kent.ac.uk/4910/}
}

Sobhy, M., Sanz-Izquierdo, B. and Batchelor, J. System and Circuit Models for Microwave Antennas

[Abstract] [BibTeX]

2006 2006 European Conference on Wireless Technologies, pp. 277-280  inproceedings URL  Abstract: Computer aided procedures have been developed to derive system and circuit models to match measured responses of the reflection coefficient of microwave antennas. System models are used to study the effect of the antenna on digital signals in digital communication systems. Circuit models are used as an aid to designing the antenna and relating the antenna performance to its physical structure BibTeX:

@inproceedings{Sobhy2006,
  author = {Mohamed Sobhy and Benito Sanz-Izquierdo and J.C. Batchelor},
  title = {System and Circuit Models for Microwave Antennas},
  booktitle = {2006 European Conference on Wireless Technologies},
  year = {2006},
  pages = {277--280},
  url = {http://kar.kent.ac.uk/36416/}
}

Sobhy, M., Sanz-Izquierdo, B. and Batchelor, J. Modelling of Microwave Antennas

[BibTeX]

2006 European Conference on Antennas and Propagation EuCAP06  inproceedings URL  BibTeX:

@inproceedings{Sobhy2006a,
  author = {M.I. Sobhy and B. Sanz-Izquierdo and J.C. Batchelor},
  title = {Modelling of Microwave Antennas
},
  booktitle = {European Conference on Antennas and Propagation EuCAP06},
  year = {2006},
  url = {http://kar.kent.ac.uk/9780/}
}

Swaisaenyakorn, S. and Batchelor, J. Body gain study for animated human model in a body worn antenna system

[Abstract] [BibTeX]

2012 Proc. 2012 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP), pp. 108-1092012 IEEE Asia-Pacific Conference on Antennas and Propagation, pp. 108-109  inproceedings URL  Abstract: This paper presents the study of body gain in a Body worn antenna system using both measurement and simulation. The simulation has been done in XFdtd, EM (electromagnetic) simulation software, using a 3D-surface scan of a test person. The gesture of the body and positions of antennas on the 3D body surface in the simulation were extracted from data obtained by a motion capture system while the actual measurement was taking place using the dual band metallic button antennas. Additional simulation is done on a standard model available in XFdtd to compare the quality of created 3D model from this research. BibTeX:

@inproceedings{Swaisaenyakorn2012,
  author = {S. Swaisaenyakorn and J.C. Batchelor},
  title = {Body gain study for animated human model in a body worn antenna system},
  booktitle = {2012 IEEE Asia-Pacific Conference on Antennas and Propagation},
  journal = {Proc. 2012 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP), pp. 108-109},
  publisher = {IEEE},
  year = {2012},
  pages = {108--109},
  url = {http://kar.kent.ac.uk/35803/}
}

Swaisaenyakorn, S., Chitradurga-Nanjaraj, K., Kelly, S. and Batchelor, J. The effect of arm movement on walking action in wireless body area network channel

[Abstract] [BibTeX]

2012 Antennas and Propagation (EuCAP), 2013 7th European Conference, pp. 1173-1176  inproceedings URL  Abstract: This paper investigates how arm movement during walking action would affect wireless radio channel on a body area network. The paper shows how much the degree of arm movement during walking action could influence the S21 value comparing to the effect of the model’s height. All experiments were done in a video studio so an indoor multipath environment could be expected. The channel transmission gain S21 of a main model and 5 additional models with similar height had been collected while they were performing walking action having two antennas attached on their right wrist and left chest. An arm movement experiment was done using a different model who was standing still before then moving his right arm to a different angle while S21 was measured. BibTeX:

@inproceedings{Swaisaenyakorn2012a,
  author = {S. Swaisaenyakorn and K Chitradurga-Nanjaraj and S.W. Kelly and J.C. Batchelor},
  title = {The effect of arm movement on walking action in wireless body area network channel },
  booktitle = {Antennas and Propagation (EuCAP), 2013 7th European Conference},
  year = {2012},
  pages = {1173--1176},
  url = {http://kar.kent.ac.uk/35922/}
}

Swaisaenyakorn, S., Kelly, S., Young, P. and Batchelor, J. Evaluation of 3D animated human model from 3D scanner and motion capture to be used in electromagnetic simulator for body-centric system

[Abstract] [BibTeX]

2012 2012 5th International Conference on BioMedical Engineering and Informatics, pp. 632-636  inproceedings URL  Abstract: Body-worn physiological sensors can facilitate ambulatory patient monitoring, particularly if communication between sensors is wireless; but the communication channel must be robust. This paper presents how a 3D animated human model is created using a 3D scanner and a motion capture system. Then this model is used in XFdtd, electromagnetic simulation software to obtain body worn channel properties. Three walking gestures from the created model, wearing dual band metallic button antennas, DBMBAs, were simulated and compared with the original measurements carried out on the real test human model. Furthermore, verification of the 3D animated model was achieved by comparing the simulation results of the main test model with measurements from 5 additional test models BibTeX:

@inproceedings{Swaisaenyakorn2012b,
  author = {S. Swaisaenyakorn and S.W. Kelly and P.R. Young and J.C. Batchelor},
  title = {Evaluation of 3D animated human model from 3D scanner and motion capture to be used in electromagnetic simulator for body-centric system},
  booktitle = {2012 5th International Conference on BioMedical Engineering and Informatics},
  year = {2012},
  pages = {632--636},
  url = {http://kar.kent.ac.uk/35855/}
}

Swaisaenyakorn, S., Young, P. and Batchelor, J. Animated Human Movement and Posture Capture for Body Worn Antenna Simulation

[BibTeX]

2011 Proc. EuCAP 2011, 5th European Conference of Antennas and PropagationEuCAP 2011, 5th European Conference of Antennas and Propagation, pp. 3791-3795  inproceedings URL  BibTeX:

@inproceedings{Swaisaenyakorn2011,
  author = {S. Swaisaenyakorn and P.R. Young and J.C. Batchelor},
  title = {Animated Human Movement and Posture Capture for Body Worn Antenna Simulation},
  booktitle = {EuCAP 2011, 5th European Conference of Antennas and Propagation},
  journal = {Proc. EuCAP 2011, 5th European Conference of Antennas and Propagation},
  year = {2011},
  pages = {3791--3795},
  url = {http://kar.kent.ac.uk/27808/}
}

Swaisaenyakorn, S., Young, P., Kelly, S. and Batchelor, J. Comparison of 3D scanned human models for off-body communications using motion capture

[Abstract] [BibTeX]

2012 Antennas and Propagation Conference2012 Loughborough Antennas & Propagation Conference (LAPC), pp. 1-4  inproceedings URL  Abstract: Body area networks are complex to analyze as there are several channel mechanisms occurring simultaneously, i.e. environmental multipath together with body motion and close coupling between worn antennas and human tissue. Electromagnetic (EM) simulation is an important tool since not all studies can be done on a real human. In order to gain insight into off-body communication involving a worn antenna, this paper uses a 3D animated model obtained from a 3D surface scanner and a motion capture system for full wave simulation of channels at 2.45 and 5.5GHz. To evaluate if the model can represent body area radio channels in general, a comparison of S21 of the simulated model with measurements from 5 other models of similar height to the main test subject is presented. BibTeX:

@inproceedings{Swaisaenyakorn2012c,
  author = {S. Swaisaenyakorn and P.R. Young and S.W. Kelly and J.C. Batchelor},
  title = {Comparison of 3D scanned human models for off-body communications using motion capture},
  booktitle = {2012 Loughborough Antennas & Propagation Conference (LAPC)},
  journal = {Antennas and Propagation Conference},
  publisher = {IEEE},
  year = {2012},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/35805/}
}

Swaisaenyakron, S., Young, P. and Batchelor, J. Animated human walking movement for body worn antenna study

[Abstract] [BibTeX]

2011 2011 Loughborough Antennas and Propagation Conference (LAPC 2011)2011 Loughborough Antennas & Propagation Conference, pp. 1-4  inproceedings URL  Abstract: This paper presents how an animated human model with walking movement has been created and used in the body worn electromagnetic simulation software, XFdtd. A 3D-surface scan of a human body has been combined with the walking movement captured using a motion capture system to generate the animated model. A comparison between measurement results taken on the real human subject and simulation results from the created animated model of the same human subject is examined to select the appropriate mesh size and material representing the body and antennas. The effect of body gesture on the on and off-body radio channels has been investigated with the ultimate aim of reducing transmit power between antennas. BibTeX:

@inproceedings{Swaisaenyakron2011,
  author = {S. Swaisaenyakron and P.R. Young and J.C. Batchelor},
  title = {Animated human walking movement for body worn antenna study},
  booktitle = {2011 Loughborough Antennas & Propagation Conference},
  journal = {2011 Loughborough Antennas and Propagation Conference (LAPC 2011)},
  publisher = {IEEE},
  year = {2011},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/35847/}
}

Tse, S., Batchelor, J. and Langley, R. Electromagnetic Multi-Bandgap Structures for Mobile Communications

[BibTeX]

2004 27th ESA Antenna Workshop on Innovative Period Antennas: Electromagnetic Bandgap, Left-Handed Materials, Fractal and Frequency Selective Surfaces, pp. 335-341  inproceedings URL  BibTeX:

@inproceedings{Tse2004,
  author = {S. Tse and J.C. Batchelor and R.J. Langley},
  title = {Electromagnetic Multi-Bandgap Structures for Mobile Communications
},
  booktitle = {27th ESA Antenna Workshop on Innovative Period Antennas: Electromagnetic Bandgap, Left-Handed Materials, Fractal and Frequency Selective Surfaces},
  year = {2004},
  pages = {335--341},
  url = {http://kar.kent.ac.uk/8654/}
}

Tse, S., Batchelor, J., Young, P. and Langley, R. Enhanced MEBG Patch Antenna Performance by using a Closed-Edge EBG Substrate

[BibTeX]

2005 Loughborough Antennas and Propagation Conference 2005  inproceedings URL  BibTeX:

@inproceedings{Tse2005,
  author = {S. Tse and J.C. Batchelor and P.R. Young and R.J. Langley},
  title = {Enhanced MEBG Patch Antenna Performance by using a Closed-Edge EBG Substrate
},
  booktitle = {Loughborough Antennas and Propagation Conference 2005},
  year = {2005},
  url = {http://kar.kent.ac.uk/8888/}
}

Tse, S., Izquierdo, B., Batchelor, J. and Langley, R. Convoluted elements for electromagnetic band gap structures

[Abstract] [BibTeX]

2004 IEEE Antennas and Propagation Society Symposium, 2004., pp. 819-822 Vol.1  inproceedings URL  Abstract: Convolution and interleaving of periodic electromagnetic band gap (EBG) elements is investigated to reduce the band-gap frequency for fixed periodicity. A 42% reduction in band gap frequency is obtained when compared to a simple square patch element. Furthermore, interleaving adjacent convoluted elements reduces the band gap frequency by 55% when compared to the solid patch. BibTeX:

@inproceedings{Tse2004a,
  author = {S. Tse and B.S. Izquierdo and J.C. Batchelor and R.J. Langley},
  title = {Convoluted elements for electromagnetic band gap structures},
  booktitle = {IEEE Antennas and Propagation Society Symposium, 2004.},
  year = {2004},
  pages = {819--822 Vol.1},
  url = {http://kar.kent.ac.uk/36422/}
}

Tse, S., Sanz-Izquierdo, B., Batchelor, J. and Langley, R. Reduced Size Unit Cells for High Impedance (HIP) Ground Planes

[BibTeX]

2003 Proc. IEE ICAP2003 Int. Conf. On Antennas and Propagation 2003, 491, pp. 473-476  inproceedings URL  BibTeX:

@inproceedings{Tse2003,
  author = {S. Tse and B. Sanz-Izquierdo and J.C. Batchelor and R.J. Langley},
  title = {Reduced Size Unit Cells for High Impedance (HIP) Ground Planes
},
  booktitle = {Proc. IEE ICAP2003 Int. Conf. On Antennas and Propagation 2003, 491},
  year = {2003},
  pages = {473--476},
  url = {http://kar.kent.ac.uk/7621/}
}

Voudouris, K., Batchelor, J. and Langley, R. Concentric Ring Antennas for Mobile Communications

[BibTeX]

1992 18th Antenna Symposium  inproceedings URL  BibTeX:

@inproceedings{Voudouris1992,
  author = {K. Voudouris and J.C. Batchelor and R.J. Langley},
  title = {Concentric Ring Antennas for Mobile Communications},
  booktitle = {18th Antenna Symposium},
  year = {1992},
  url = {http://kar.kent.ac.uk/36481/}
}

Ziai, M. and Batchelor, J. A Prototype Passive UHF RFID Transfer Tatto Tag

[Abstract] [BibTeX]

2011 Proc. 5th European Conference on Antennas and Propagation (EUCAP)5th European Conference on Antennas and Propagation (EUCAP), pp. 3811-3814  inproceedings URL  Abstract: A novel temporary transfer tattoo based RFID tag is presented providing a non-optimised read range of 50cm. The transfer based tag is proposed for security and personnel tagging applications where the injection of a sub-skin tag is not desirable. With some refinement the tag could have a life span of a day or more, but could not be transferred to another person without destroying it. By applying correctly formulated conducting inks, the patches could be inkjet printed for widespread use. BibTeX:

@inproceedings{Ziai2011,
  author = {M.A. Ziai and J.C. Batchelor},
  title = {A Prototype Passive UHF RFID Transfer Tatto Tag},
  booktitle = {5th European Conference on Antennas and Propagation (EUCAP)},
  journal = {Proc. 5th European Conference on Antennas and Propagation (EUCAP)},
  year = {2011},
  pages = {3811--3814},
  url = {http://kar.kent.ac.uk/28010/}
}

Ziai, M. and Batchelor, J. RFID TAGs as transfer tattoos

[Abstract] [BibTeX]

2011 2011 Loughborough Antennas & Propagation Conference, pp. 1-4  inproceedings URL  Abstract: A range of designs are presented illustrating how RFID tags can be realized as temporary transfer tattoos for use in applications such as medical and security systems. The prototype tags work at the RFID UHF band (867MHz) and have read ranges from about 50cm to 2.75m BibTeX:

@inproceedings{Ziai2011a,
  author = {M.A. Ziai and J.C. Batchelor},
  title = {RFID TAGs as transfer tattoos},
  booktitle = {2011 Loughborough Antennas & Propagation Conference},
  year = {2011},
  pages = {1--4},
  url = {http://kar.kent.ac.uk/35833/}
}

Ziai, M. and Batchelor, J. A prototype passive UHF RFID transfer tattoo tag

[Abstract] [BibTeX]

2011 Proceedings of the 5th European Conference on Antennas and Propagation Proceedings of a Meeting Held 11-15 April 2011, Rome, Italy 5 Vols. – See more at: http://www.printsasia.com/book/proceedings-of-the-5th-european-conference-on-antennas-and-propagationAntennas and Propagation (EUCAP), Proceedings of the 5th European Conference , pp. 3811-3814  inproceedings URL  Abstract: A novel temporary transfer tattoo based RFID tag is presented providing a non-optimised read range of 50cm. The transfer based tag is proposed for security and personnel tagging applications where the injection of a sub-skin tag is not desirable. With some refinement the tag could have a life span of a day or more, but could not be transferred to another person without destroying it. By applying correctly formulated conducting inks, the patches could be inkjet printed for widespread use. BibTeX:

@inproceedings{Ziai2011b,
  author = {M.A. Ziai and J.C. Batchelor},
  title = {A prototype passive UHF RFID transfer tattoo tag },
  booktitle = {Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference },
  journal = {Proceedings of the 5th European Conference on Antennas and Propagation Proceedings of a Meeting Held 11-15 April 2011, Rome, Italy 5 Vols. - See more at: http://www.printsasia.com/book/proceedings-of-the-5th-european-conference-on-antennas-and-propagation},
  publisher = {IEEE},
  year = {2011},
  pages = {3811--3814},
  url = {http://kar.kent.ac.uk/35849/}
}

Ziai, M. and Batchelor, J. Low Profile Planar Platform Tolerant UHF RFID Tags

[BibTeX]

2010 Proc. IEEE International Conference on RFID-Technology and Applications, Guangzhou, China, 17-19 June 2010IEEE International Conference on RFID-Technology and Applications, pp. 227-232  inproceedings URL  BibTeX:

@inproceedings{Ziai2010,
  author = {M.A. Ziai and J.C. Batchelor},
  title = {Low Profile Planar Platform Tolerant UHF RFID Tags},
  booktitle = {IEEE International Conference on RFID-Technology and Applications},
  journal = {Proc. IEEE International Conference on RFID-Technology and Applications, Guangzhou, China, 17-19 June 2010},
  year = {2010},
  pages = {227--232},
  url = {http://kar.kent.ac.uk/25155/}
}

Ziai, M. and Batchelor, J. ‘UHF RFID Tag Antenna Design for On-Body Applications

[Abstract] [BibTeX]

2010 Proc. 2010 Loughborough Antennas & Propagation Conference, Loughborough, UK,, 809 November 20102010 Loughborough Antennas & Propagation Conference, pp. 185-188  inproceedings URL  Abstract: This paper addresses the antennas design for passive UHF rfid applications involving the human body as the object to be tagged. Novel antenna geometry is proposed for conjugate impedance matching to the complex impedance of the rfid transponder. The proposed tag is capable of achieving high read range directly attached to a human thorax or in free space. BibTeX:

@inproceedings{Ziai2010a,
  author = {M.A. Ziai and J.C. Batchelor},
  title = {'UHF RFID Tag Antenna Design for On-Body Applications},
  booktitle = {2010 Loughborough Antennas & Propagation Conference},
  journal = {Proc. 2010 Loughborough Antennas & Propagation Conference, Loughborough, UK,, 809 November 2010},
  year = {2010},
  pages = {185--188},
  url = {http://kar.kent.ac.uk/26051/}
}

Zuazola, I.G., Batchelor, J. and Elmirghani, J. Miniature Narrow Band PIFA Antenna for High Performance Wireless Systems

[Abstract] [BibTeX]

2009 Proc. 3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, Berlin, 23-27 March 20093rd European Conference on Antennas and Propagation, pp. 395-396  inproceedings URL  Abstract: This paper introduces a miniature narrow band antenna for high performance systems using the WiMAX unlicensed band (5.470-5.725 GHz). this performance is achieved as a result of a low VSWR circule and “Q” quality factor. The antenna return loss (RL), VSWR circule and “Q” quality factor contour will be shown. Owing to its compact design this antenna is suitable for equipment integration as small as mobile handsets. BibTeX:

@inproceedings{Zuazola2009,
  author = {I.J. Garcia Zuazola and J.C. Batchelor and J.M.H. Elmirghani},
  title = {Miniature Narrow Band PIFA Antenna for High Performance Wireless Systems},
  booktitle = {3rd European Conference on Antennas and Propagation},
  journal = {Proc. 3rd European Conference on Antennas and Propagation, IEEE, EuCAP 2009, Berlin, 23-27 March 2009},
  year = {2009},
  pages = {395--396},
  url = {http://kar.kent.ac.uk/23311/}
}

Zuazola, I.G., Batchelor, J., Langley, R., Das, A., Nkansah, A., Wake, D. and Gomes, N. Photonic Antenna Units containing Bi-directional Amplification for TDD and FDD in Picocell Systems

[Abstract] [BibTeX]

2005 Proc. LAPC Conference, pp. 217-220  inproceedings URL  Abstract: Abstract: Photonically driven antenna units suited for use in a Radio-Over-Fibre pico-cellular distribution systems are presented. The antenna units are intended to contain bi-directional amplification paths serving the GSM, 3G mobile (UMTS) and wireless LAN bands. A design study has been carried out to assess the effects of single or dual antenna solutions in regard of loop gain due to mutual coupling between the antennas. BibTeX:

@inproceedings{Zuazola2005,
  author = {I.J. Garcia Zuazola and J.C. Batchelor and R.J. Langley and A. Das and A. Nkansah and D. Wake and N.J. Gomes},
  title = {Photonic Antenna Units containing Bi-directional Amplification for TDD and FDD in Picocell Systems
},
  booktitle = {Proc. LAPC Conference},
  publisher = {Loughborough University},
  year = {2005},
  pages = {217--220},
  url = {http://kar.kent.ac.uk/8936/}
}

“A. Sharma, I.J. Garcia Zuazola, A.G.J.B. Enhanced H-field in HF RFID systems by optimizing the loop spacing of antenna coils¾

[BibTeX]

2013 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS(55), pp. 4  article   BibTeX:

@article{A.SharmaMICROWAVEANDOPTICALTECHNOLOGYLETTERS¾,
  author = {"A. Sharma, I.J. Garcia Zuazola, A. Gupta, J.C. Batchelor"},
  title = {Enhanced H-field in HF RFID systems by optimizing the loop spacing of antenna coils¾},
  journal = {MICROWAVE AND OPTICAL TECHNOLOGY LETTERS},
  year = {2013},
  number = {55},
  pages = {4}
}

A.D. Chuprin, J.C. Batchelor, E.P. Design of Convoluted Wire Antennas using a Genetic Algorithm

[BibTeX]

2001
Vol. 148, pp. 323-326  article   BibTeX:

@article{A.D.Chuprin2001,
  author = {A.D. Chuprin, J.C. Batchelor, E.A. Parker},
  title = {Design of Convoluted Wire Antennas using a Genetic Algorithm},
  year = {2001},
  volume = {148},
  pages = {323-326}
}

B. Sanz Izquierdo, P.R. Young, Q.B.J.B. Compact UWB Monopole for Multilayer Applications

[BibTeX]

2006 Electronics Letters
Vol. 42(1), pp. 05. Jul  article   BibTeX:

@article{B.SanzIzquierdo2006,
  author = {B. Sanz Izquierdo, P.R. Young, Q. Bai, J.C. Batchelor},
  title = {Compact UWB Monopole for Multilayer Applications},
  journal = {Electronics Letters},
  year = {2006},
  volume = {42},
  number = {1},
  pages = {05. Jul}
}

B. Sanz Izquiredo, J.C. Batchelor, R.L. Multiband PIFA Antenna with Ground Plane Capacitive Resonator

[BibTeX]

2004 Electronic Letters
Vol. 40, pp. 1391-1392  article   BibTeX:

@article{B.SanzIzquiredo2004,
  author = {B. Sanz Izquiredo, J.C. Batchelor, R.J. Langley},
  title = {Multiband PIFA Antenna with Ground Plane Capacitive Resonator},
  journal = {Electronic Letters},
  year = {2004},
  volume = {40},
  pages = {1391-1392}
}

B. Sanz Izquiredo, J.C. Batchelor, R.L.M.S. Single and Double Layer Planar Multiband PIFAs

[BibTeX]

2006 Antennas and Propagation, IEEE Transactions on
Vol. 54(5), pp. 1416-1422  article   BibTeX:

@article{B.SanzIzquiredo2006,
  author = {B. Sanz Izquiredo, J.C. Batchelor, R.J. Langley, M.I. Sobhy},
  title = {Single and Double Layer Planar Multiband PIFAs},
  journal = {Antennas and Propagation, IEEE Transactions on},
  year = {2006},
  volume = {54},
  number = {5},
  pages = {1416-1422}
}

B. Sanz-Izquierdo, F. Huang, J.B. Covert Dual-Band Wearable Button Antenna

[BibTeX]

2006 Electronics Letters
Vol. 42(12), pp. 668-670  article   BibTeX:

@article{B.Sanz-Izquierdo2006,
  author = {B. Sanz-Izquierdo, F. Huang, J.C. Batchelor},
  title = {Covert Dual-Band Wearable Button Antenna},
  journal = {Electronics Letters},
  year = {2006},
  volume = {42},
  number = {12},
  pages = {668-670}
}

B. Sanz-Izquierdo, J.A. Miller, J.B.M.S. Dual-Band Wearable Metallic Button Antennas and Transmission in Body Area Networks

[BibTeX]

2010 Microwaves, Antennas & Propagation, IET
Vol. 4(2), pp. 182-190  article   BibTeX:

@article{B.Sanz-Izquierdo2010a,
  author = {B. Sanz-Izquierdo, J.A. Miller, J.C. Batchelor, M.I. Sobhy},
  title = {Dual-Band Wearable Metallic Button Antennas and Transmission in Body Area Networks},
  journal = {Microwaves, Antennas & Propagation, IET },
  year = {2010},
  volume = {4},
  number = {2},
  pages = {182-190}
}

B. Sanz-Izquierdo, J.C. Batchelor, M.S. Button Antenna on Textiles for Wireless Local Area Network On Body Applications

[BibTeX]

2010 Microwave, Antennas and Propagation, IET
Vol. 4(11), pp. 1980-1987  article   BibTeX:

@article{B.Sanz-Izquierdo2010,
  author = {B. Sanz-Izquierdo, J.C. Batchelor, M.I. Sobhy},
  title = {Button Antenna on Textiles for Wireless Local Area Network On Body Applications},
  journal = {Microwave, Antennas and Propagation, IET},
  year = {2010},
  volume = {4},
  number = {11},
  pages = {1980-1987}
}

B.M. Cahill, J.B. Enhanced Stripline Antenna Array

[BibTeX]

2001 Electronics Letters, pp. 1211-1212  article   BibTeX:

@article{B.M.Cahill2001,
  author = {B.M. Cahill, J.C. Batchelor},
  title = {Enhanced Stripline Antenna Array},
  journal = {Electronics Letters},
  year = {2001},
  pages = {1211-1212}
}

B.M. Cahill, J.B. Electromagnetic Scanning Three Element Array with Integral Phase Shifters

[BibTeX]

2000 Electronics Letters
Vol. 36, pp. 1521-1522  article   BibTeX:

@article{B.M.Cahill2000,
  author = {B.M. Cahill, J.C. Batchlor},
  title = {Electromagnetic Scanning Three Element Array with Integral Phase Shifters},
  journal = {Electronics Letters },
  year = {2000},
  volume = {36},
  pages = {1521-1522}
}

C.A. Diugwu, J.C. Batchelor, M.F. Field Distributions and RFID Reading within Metallic Roll Cages

[BibTeX]

2006 Electronics Letters
Vol. 42(23), pp. 1326-1328  article   BibTeX:

@article{C.A.Diugwu2006,
  author = {C.A. Diugwu, J.C. Batchelor, M. Fogg},
  title = {Field Distributions and RFID Reading within Metallic Roll Cages},
  journal = {Electronics Letters},
  year = {2006},
  volume = {42},
  number = {23},
  pages = {1326-1328}
}

E.A. Parker, J.-B. Robertson, B.S.-I.J.B. Minimal Size FSS for Long Wavelength Operation

[BibTeX]

2008 Electronics Letters
Vol. 44(6), pp. 394-395  article   BibTeX:

@article{E.A.Parker2008,
  author = {E.A. Parker, J.-B. Robertson, B. Sanz-Izquierdo, J.C. Batchelor},
  title = {Minimal Size FSS for Long Wavelength Operation},
  journal = {Electronics Letters},
  year = {2008},
  volume = {44},
  number = {6},
  pages = {394-395}
}

I.J. Garcia Zuazola, A. Sharma, J.B.I.A.A.P.W.W.J.E.R.L. Radio Frequency IDentification Miniature Interrogator Antenna Sprayed over an In-Vehicle Chassis

[BibTeX]

2012 Microw. Antennas Propagation, IET
Vol. 6(5), pp. 1674-1680  article   BibTeX:

@article{I.J.GarciaZuazola2012,
  author = {I.J. Garcia Zuazola, A. Sharma, J.C. Batchelor, I Angulo, A. Perallos, W.G. Whittow, J.M.H. Elmirghani, R. Langley},
  title = {Radio Frequency IDentification Miniature Interrogator Antenna Sprayed over an In-Vehicle Chassis},
  journal = { Microw. Antennas Propagation, IET},
  year = {2012},
  volume = {6},
  number = {5},
  pages = {1674-1680}
}

I.J. Garcia Zuazola, J.C. Batchelor, J.E.N.G. UWB PIFA for Simplified Transceivers

[BibTeX]

2010 Electronics Letters
Vol. 46(2), pp. 116-118  article   BibTeX:

@article{I.J.GarciaZuazola2010,
  author = {I.J. Garcia Zuazola, J.C. Batchelor, J.M.H. Elmirghani, N.J. Gomes},
  title = {UWB PIFA for Simplified Transceivers},
  journal = {Electronics Letters },
  year = {2010},
  volume = {46},
  number = {2},
  pages = {116-118}
}

I.J.G. Zuazola, A. Sharma, J.B.I.A.A.P.J.E. Sprayed antenna on cans for WLAN-RFID tags

[BibTeX]

2013 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS¾¾¾ ¾¾
Vol. 55(4), pp. 773-775  article   BibTeX:

@article{I.J.G.Zuazola2013,
  author = {I.J.G. Zuazola, A. Sharma, J.C. Batchelor, I. Angulo, A. Perallos, J.M.H. Elmirghani},
  title = {Sprayed antenna on cans for WLAN-RFID tags },
  journal = {MICROWAVE AND OPTICAL TECHNOLOGY LETTERS¾¾¾ ¾¾},
  year = {2013},
  volume = {55},
  number = {4},
  pages = {773-775}
}

I.J.G. Zuazola, J.B. Compact Multiband PIFA Type Antenna

[BibTeX]

2009 Electronics Letters
Vol. 45(15), pp. 768-769  article   BibTeX:

@article{I.J.G.Zuazola2009,
  author = {I.J.G. Zuazola, J.C. Batchelor},
  title = {Compact Multiband PIFA Type Antenna},
  journal = {Electronics Letters},
  year = {2009},
  volume = {45},
  number = {15},
  pages = {768-769}
}

J.C. Batchelor, K. Voudouris, R.L. Dual Mode and Stacked Concentric Ring Patch Antenna Arrays

[BibTeX]

1993 Electronics Letters
Vol. 29, pp. 1319-1320  article   BibTeX:

@article{J.C.Batchelor1993,
  author = {J.C. Batchelor, K. Voudouris, R.J. Langley},
  title = {Dual Mode and Stacked Concentric Ring Patch Antenna Arrays},
  journal = {Electronics Letters},
  year = {1993},
  volume = {29},
  pages = {1319-1320}
}

J.C. Batchelor, K.K. Tsang, R.L. Annular Ring Patch Antennas with Biased Ferrites

[BibTeX]

1996 Alta Frequenza Revista di Elettronica
Vol. 81(1), pp. 37-39  article   BibTeX:

@article{J.C.Batchelor1996,
  author = {J.C. Batchelor, K.K. Tsang, R.J. Langley},
  title = {Annular Ring Patch Antennas with Biased Ferrites},
  journal = {Alta Frequenza Revista di Elettronica},
  year = {1996},
  volume = {81},
  number = {1},
  pages = {37-39}
}

J.C. Batchelor, L. Economou, R.L. Scanned Microstrip Arrays using Simple Integrated Ferrite Phase Shifters

[BibTeX]

2000 Microwaves, Antennas and Propagation, IEE
Vol. 143(3), pp. 237-241  article   BibTeX:

@article{J.C.Batchelor2000,
  author = {J.C. Batchelor, L. Economou, R.J. Langley},
  title = {Scanned Microstrip Arrays using Simple Integrated Ferrite Phase Shifters},
  journal = {Microwaves, Antennas and Propagation, IEE},
  year = {2000},
  volume = {143},
  number = {3},
  pages = {237-241}
}

J.C. Batchelor, R.L. Beam Scanning using Microstrip on Biased Ferrite

[BibTeX]

1997 Electronic Letters
Vol. 33(8), pp. 645-646  article   BibTeX:

@article{J.C.Batchelor1997,
  author = {J.C. Batchelor, R.J. Langley},
  title = {Beam Scanning using Microstrip on Biased Ferrite},
  journal = {Electronic Letters},
  year = {1997},
  volume = {33},
  number = {8},
  pages = {645-646}
}

J.C. Batchelor, R.L. Microstrip Annular Ring Slot Antennas for Mobile Applications

[BibTeX]

1996 Electronics Letters
Vol. 32(18), pp. 1635-1636  article   BibTeX:

@article{J.C.Batchelor1996a,
  author = {J.C. Batchelor, R.J. Langley},
  title = {Microstrip Annular Ring Slot Antennas for Mobile Applications},
  journal = {Electronics Letters},
  year = {1996},
  volume = {32},
  number = {18},
  pages = {1635-1636}
}

J.C. Batchelor, R.L. Microstrip Ring Antennas operating at Higher Order Modes for Mobile Applications

[BibTeX]

1995 Microwaves, Antennas and Propagation, IEE
Vol. 142(2), pp. 151-155  article   BibTeX:

@article{J.C.Batchelor1995,
  author = {J.C. Batchelor, R.J. Langley},
  title = {Microstrip Ring Antennas operating at Higher Order Modes for Mobile Applications},
  journal = {Microwaves, Antennas and Propagation, IEE},
  year = {1995},
  volume = {142},
  number = {2},
  pages = {151-155}
}

J.C. Batchelor, R.J. Langley, H.E.M.S. Modeling of Vehicles with Integrated Antennas

[BibTeX]

2000 Microwave and Optical Technology Letters
Vol. 27(6), pp. 404-407  article   BibTeX:

@article{J.C.Batchelor2000a,
  author = {J.C. Batchelor, R.J. Langley, H. Endo, M. Saito},
  title = {Modeling of Vehicles with Integrated Antennas},
  journal = {Microwave and Optical Technology Letters},
  year = {2000},
  volume = {27},
  number = {6},
  pages = {404-407}
}

J.C. Batchelor, S. Tse, R.L. Multiband Electromagnetic Bandgap Elements

[BibTeX]

2005
Vol. 40  article   BibTeX:

@article{J.C.Batchelor2005,
  author = {J.C. Batchelor, S. Tse, R.J. Langley},
  title = {Multiband Electromagnetic Bandgap Elements},
  year = {2005},
  volume = {40}
}

L. Low, R.J. Langley, J.B. Modelling and Performance of Conformal Automotive Antennas

[BibTeX]

2007 Microwave Antennas Propagation, IET
Vol. 1(5), pp. 973-979  article   BibTeX:

@article{L.Low2007,
  author = {L. Low, R.J. Langley, J.C. Batchelor},
  title = {Modelling and Performance of Conformal Automotive Antennas},
  journal = {Microwave Antennas Propagation, IET },
  year = {2007},
  volume = {1},
  number = {5},
  pages = {973-979}
}

M. Henry, C.E. Free, B.I.J.B.P.Y. Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis

[BibTeX]

2009 Advanced Packaging, IEEE Transactions on
Vol. 32(1), pp. 93-100  article   BibTeX:

@article{M.Henry2009,
  author = {M. Henry, C.E. Free, B.S. Izquierdo, J. Batchelor, P. Young},
  title = {Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis},
  journal = { Advanced Packaging, IEEE Transactions on },
  year = {2009},
  volume = {32},
  number = {1},
  pages = {93-100}
}

M.A. Ziai, J.B. Temporary On-Skin Passive UHF RFID Transfer Tag

[BibTeX]

2011 Antennas and Propagation, IEEE Transactions on
Vol. 10(59), pp. 3565-3571  article   BibTeX:

@article{M.A.Ziai2011,
  author = {M.A. Ziai, J.C. Batchelor},
  title = {Temporary On-Skin Passive UHF RFID Transfer Tag},
  journal = {Antennas and Propagation, IEEE Transactions on},
  year = {2011},
  volume = {10},
  number = {59},
  pages = {3565-3571}
}

M.A. Ziai, J.B. Thin Ultra High-Frequency Platform Insensitive Radio Frequency Identification Tags

[BibTeX]

2010 Microwaves, Antennas & Propagation, IET
Vol. 4(3), pp. 390-398  article   BibTeX:

@article{M.A.Ziai2010,
  author = {M.A. Ziai, J.C. Batchelor},
  title = {Thin Ultra High-Frequency Platform Insensitive Radio Frequency Identification Tags},
  journal = {Microwaves, Antennas & Propagation, IET},
  year = {2010},
  volume = {4},
  number = {3},
  pages = {390-398}
}

M.A. Ziai, J.B. Curved RFID Tags for Metallic Gas Cylinders

[BibTeX]

2009 Electronics Letters
Vol. 45(17), pp. 867-869  article   BibTeX:

@article{M.A.Ziai2009,
  author = {M.A. Ziai, J.C. Batchelor},
  title = {Curved RFID Tags for Metallic Gas Cylinders},
  journal = {Electronics Letters},
  year = {2009},
  volume = {45},
  number = {17},
  pages = {867-869}
}

M.I. Sobhy, M.W.R. Ng, R.L.J.B. TLM Modelling of Microstrip Patch Antenna on Ferrite Substrate

[BibTeX]

2001 International Journal of RF & Microwave Computer Aided Engineering
Vol. 11, pp. 131-139  article   BibTeX:

@article{M.I.Sobhy2001,
  author = {M.I. Sobhy, M.W.R. Ng, R.J. Langley, J.C. Batchelor},
  title = {TLM Modelling of Microstrip Patch Antenna on Ferrite Substrate},
  journal = {International Journal of RF & Microwave Computer Aided Engineering},
  year = {2001},
  volume = {11},
  pages = {131-139}
}

Modelling, O.-G.M.A.P. On-Glass Mobile Antenna Performance Modelling

[BibTeX]

2001 Microwave, Antennas and Propagation, IEE
Vol. 148(4), pp. 233-238  article   BibTeX:

@article{Modelling2001,
  author = {On-Glass Mobile Antenna Performance Modelling},
  title = {On-Glass Mobile Antenna Performance Modelling},
  journal = {Microwave, Antennas and Propagation, IEE},
  year = {2001},
  volume = {148},
  number = {4},
  pages = {233-238}
}

P. Callaghan, J.B. Dual-Band Pin-Patch Antenna for Wi-Fi Applications

[BibTeX]

2008 Antennas and Wireless Propagation Letters, IEEE
Vol. 7, pp. 757-760  article   BibTeX:

@article{P.Callaghan2008,
  author = {P. Callaghan, J.C. Batchelor},
  title = {Dual-Band Pin-Patch Antenna for Wi-Fi Applications},
  journal = {Antennas and Wireless Propagation Letters, IEEE},
  year = {2008},
  volume = {7},
  pages = {757-760}
}

P. Callaghan, J.B. Multiband Low-Profile Antenna for Remote Antenna Unit Picocell Applications

[BibTeX]

2008 Antenna and Propagation, IEEE Transactions on
Vol. 56(8), pp. 2475-2480  article   BibTeX:

@article{P.Callaghan2008a,
  author = {P. Callaghan, J.C. Batchelor},
  title = {Multiband Low-Profile Antenna for Remote Antenna Unit Picocell Applications},
  journal = {Antenna and Propagation, IEEE Transactions on},
  year = {2008},
  volume = {56},
  number = {8},
  pages = {2475-2480}
}

R.J. Langley, J.B. Hidden Antennas for Vehicles

[BibTeX]

2002 Electronics & Communications Engineering Journal, IEE
Vol. 14(6), pp. 253-262  article   BibTeX:

@article{R.J.Langley2002,
  author = {R.J. Langley, J.C. Batchelor},
  title = {Hidden Antennas for Vehicles},
  journal = {Electronics & Communications Engineering Journal, IEE},
  year = {2002},
  volume = {14},
  number = {6},
  pages = {253-262}
}

S. Tse, B. Sanz Isquierdo, J.B.R.L. Reduced Sized Cells for Electromagnetic Bandgap Structures

[BibTeX]

2003 Electronics Letters
Vol. 39(24), pp. 1699-1701  article   BibTeX:

@article{S.Tse2003,
  author = {S. Tse, B. Sanz Isquierdo, J.C. Batchelor, R.J. Langley},
  title = {Reduced Sized Cells for Electromagnetic Bandgap Structures},
  journal = {Electronics Letters},
  year = {2003},
  volume = {39},
  number = {24},
  pages = {1699-1701}
}

V. Sanchez-Romaguera, M.A. Ziai, D.O.S.B.J.S.W.J.B.E.P.S.Y. Towards inkjet-printed low cost passive UHF RFID skin mounted tattoo paper tags based on silver nanoparticle inks

[BibTeX]

2013 Royal Society of Chemistry (RSC) J. Mater. Chem. C
Vol. 1, pp. 6395?6402  article   BibTeX:

@article{V.Sanchez-Romaguera2013,
  author = {V. Sanchez-Romaguera, M.A. Ziai, D. Oyeka, S. Barbosa, J. S.R. Wheeler, J.C. Batchelor, E.A. Parker, S.G. Yeates},
  title = {Towards inkjet-printed low cost passive UHF RFID skin mounted tattoo paper tags based on silver nanoparticle inks},
  journal = {Royal Society of Chemistry (RSC) J. Mater. Chem. C},
  year = {2013},
  volume = {1},
  pages = {6395?6402}
}