Robustness of Wearable UHF-Band PIFAs to Human-Body Proximity

The robustness of wearable UHF-band planar inverted-F antennas (PIFAs), with respect to body-antenna separation and human tissue dispersion, is addressed through numerical investigations. The main goal is gaining physical insights into the relationship between the grounded antenna performance and th...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 64; no. 5; pp. 2050 - 2055
Main Authors Casula, G. A., Michel, A., Nepa, P., Montisci, G., Mazzarella, G.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
body-antenna coupling
grounded antennas
Layout
Magnetic resonance
Magnetic separation
planar inverted-F antennas
Robustness
Transmitting antennas
wearable antennas
grounded antennas
planar inverted-F antennas (PIFAs)
Body-antenna coupling
wearable antennas
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Summary:The robustness of wearable UHF-band planar inverted-F antennas (PIFAs), with respect to body-antenna separation and human tissue dispersion, is addressed through numerical investigations. The main goal is gaining physical insights into the relationship between the grounded antenna performance and the distribution of the electric and magnetic energy densities in the antenna near-field region close to the ground plane border. A criterion for choosing a proper shape of the antenna ground plane is suggested, which can improve the antenna robustness with respect to the random variations of the body-antenna coupling scenario, but with a minimal impact on the antenna size.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2016.2537368