In situ measurement of UHF wearable antenna radiation efficiency using a reverberation chamber

Gareth Conway, William Scanlon, C. Orlenius, C. Walker

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

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.
Original languageEnglish
Article number920753
Pages (from-to)271-274
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume7
DOIs
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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