A reduced-size wide slot antenna for enhancing along-body radio propagation in UWB on-body communications

Wen Tron Shay, Shiou Chiau Jan, Jenn-Hawn Tarng

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

In this paper, a 6-10-GHz ultrawideband (UWB) directional reduced-size wide slot antenna (RWSA) for on-body wireless communications is proposed and investigated. The RWSA is designed to be narrow in width and can be mounted on the side of a wireless device. When a side-mounted RWSA is worn on a body, the antenna boresight is naturally directed along the body surface, and most of the energy can be efficiently transmitted by direct or diffracted waves. Consequently, the on-body channel performance can be effectively improved. After a series of on-body channel measurements, the results show that, with the side-mounted RWSAs, the path loss is significantly improved (greater than 20 dB) compared with the results of previous studies, and the sensitivity of the channel to the human body and environment is effectively lessened. An approach to estimate the variation range of path loss in real environments is also proposed at the end of this paper.

Original languageEnglish
Article number6683069
Pages (from-to)1194-1203
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume62
Issue number3
DOIs
StatePublished - 1 Jan 2014

Keywords

  • Body area network (BAN)
  • channel
  • path loss
  • ultrawideband (UWB) antenna
  • wireless communication

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