Numerical analysis of bodyworn UHF antenna systems

William Scanlon, N.E. Evans

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

Bodyworn antennas are found in a wide range of medical, military and personal communication applications, yet reliable communication from the surface of the human body still presents a range of engineering challenges. At UHF and microwave frequencies, bodyworn antennas can suffer from reduced efficiency due to electromagnetic absorption in tissue, radiation pattern fragmentation and variations in feed-point impedance. The significance and nature of these effects are system specific and depend on the operating frequency, propagation environment and physical constraints on the antenna itself. This paper describes how numerical electromagnetic modelling techniques such as FDTD (finite-difference time-domain) can be used in the design of bodyworn antennas. Examples are presented for 418 MHz, 916 .5 MHz and 2 . 45 GHz, in the context of both biomedical signalling and wireless personal-area networking applications such as the Bluetooth(TM)* wireless technology.
Original languageEnglish
Pages (from-to)53-64
Number of pages12
JournalELECTRONICS & COMMUNICATION ENGINEERING JOURNAL
Volume13
Issue number2
DOIs
Publication statusPublished - Apr 2001

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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