In Situ Measurement of UHF Wearable Antenna Radiation Efficiency Using a Reverberation Chamber
Artikel i vetenskaplig tidskrift, 2008

The radiation efficiency and resonance frequency of five compact antennas worn by nine individual test subjects was measured at 2.45 GHz in a reverberation chamber. The results show that, despite significant differences in body mass, wearable antenna radiation efficiency had a standard deviation less than 0.6 dB and the resonance frequency shift was less than 1% between test subjects. Variability in the radiation efficiency and resonance frequency shift between antennas was largely dependant on body tissue coupling which is related to both antenna geometry and radiation characteristics. The reverberation chamber measurements were validated using a synthetic tissue phantom and compared with results obtained in a spherical near field chamber and finite-difference time-domain (FDTD) simulation.

Bodyworn antennas

wearable antenna radiation

efficiency

on-body communications

Författare

G. A. Conway

Queen's University Belfast

William Scanlon

Queen's University Belfast

Charlie Orlenius

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

C. Walker

Euroean Antennas

IEEE Antennas and Wireless Propagation Letters

1536-1225 (ISSN)

Vol. 7 271-274

Ämneskategorier

Telekommunikation

DOI

10.1109/lawp.2008.920753

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2018-06-12