Stacked-patch antenna with switchable propagating mode for UHF body-centric communications

W.G. Scanlon; A.R. Chandran

doi:10.1109/IWAT.2009.4906964

Stacked-patch antenna with switchable propagating mode for UHF body-centric communications

W.G. Scanlon, A.R. Chandran

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

14 Citations (Scopus)

Abstract

The ability to electronically switch between off-body and on-body communications is a useful feature for wearable antenna applications. Therefore, we present a novel stacked-patch antenna with a switched propagation mode for body-centric communications at 2.45 GHz. Mounted 2 mm above a muscle-tissue phantom and in the on-body mode, the proposed single-port antenna had an efficiency of 62% and an impedance bandwidth of 70 MHz. The antenna performance increased in the off-body mode with an efficiency of 80% and an impedance bandwidth of 247 MHz. In terms of on-body coupling in anechoic conditions, peak |S21| path gains of -39.6 dB and -48.0 dB were obtained for the on-body and off-body configurations, respectively. These results clearly demonstrate the mode isolation obtained.

Original language	Undefined
Title of host publication	IEEE International Workshop on Antenna Technology (iWAT)
Place of Publication	Santa Monica
Publisher	IEEE
Pages	1-4
Number of pages	4
ISBN (Print)	978-1-4244-4395-6
DOIs	https://doi.org/10.1109/IWAT.2009.4906964
Publication status	Published - 3 Mar 2009
Event	2009 IEEE International Workshop on Antenna Technology, iWAT 2009 - Santa Monica, United States Duration: 2 Mar 2009 → 4 Mar 2009

Publication series

Name
Publisher	IEEE

Workshop

Workshop	2009 IEEE International Workshop on Antenna Technology, iWAT 2009
Abbreviated title	iWAT
Country/Territory	United States
City	Santa Monica
Period	2/03/09 → 4/03/09

Keywords

IR-76725
EWI-20056
METIS-276436

Access to Document

10.1109/IWAT.2009.4906964

http://eprints.eemcs.utwente.nl/secure2/20056/01/04906964.pdf

Cite this

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title = "Stacked-patch antenna with switchable propagating mode for UHF body-centric communications",

abstract = "The ability to electronically switch between off-body and on-body communications is a useful feature for wearable antenna applications. Therefore, we present a novel stacked-patch antenna with a switched propagation mode for body-centric communications at 2.45 GHz. Mounted 2 mm above a muscle-tissue phantom and in the on-body mode, the proposed single-port antenna had an efficiency of 62% and an impedance bandwidth of 70 MHz. The antenna performance increased in the off-body mode with an efficiency of 80% and an impedance bandwidth of 247 MHz. In terms of on-body coupling in anechoic conditions, peak |S21| path gains of -39.6 dB and -48.0 dB were obtained for the on-body and off-body configurations, respectively. These results clearly demonstrate the mode isolation obtained.",

keywords = "IR-76725, EWI-20056, METIS-276436",

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doi = "10.1109/IWAT.2009.4906964",

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Scanlon, WG & Chandran, AR 2009, Stacked-patch antenna with switchable propagating mode for UHF body-centric communications. in IEEE International Workshop on Antenna Technology (iWAT). IEEE, Santa Monica, pp. 1-4, 2009 IEEE International Workshop on Antenna Technology, iWAT 2009, Santa Monica, California, United States, 2/03/09. https://doi.org/10.1109/IWAT.2009.4906964

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PY - 2009/3/3

Y1 - 2009/3/3

N2 - The ability to electronically switch between off-body and on-body communications is a useful feature for wearable antenna applications. Therefore, we present a novel stacked-patch antenna with a switched propagation mode for body-centric communications at 2.45 GHz. Mounted 2 mm above a muscle-tissue phantom and in the on-body mode, the proposed single-port antenna had an efficiency of 62% and an impedance bandwidth of 70 MHz. The antenna performance increased in the off-body mode with an efficiency of 80% and an impedance bandwidth of 247 MHz. In terms of on-body coupling in anechoic conditions, peak |S21| path gains of -39.6 dB and -48.0 dB were obtained for the on-body and off-body configurations, respectively. These results clearly demonstrate the mode isolation obtained.

AB - The ability to electronically switch between off-body and on-body communications is a useful feature for wearable antenna applications. Therefore, we present a novel stacked-patch antenna with a switched propagation mode for body-centric communications at 2.45 GHz. Mounted 2 mm above a muscle-tissue phantom and in the on-body mode, the proposed single-port antenna had an efficiency of 62% and an impedance bandwidth of 70 MHz. The antenna performance increased in the off-body mode with an efficiency of 80% and an impedance bandwidth of 247 MHz. In terms of on-body coupling in anechoic conditions, peak |S21| path gains of -39.6 dB and -48.0 dB were obtained for the on-body and off-body configurations, respectively. These results clearly demonstrate the mode isolation obtained.

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