Antennas for on-body communication systems

Author

Kamarudin, M.R. ; Nechayev, Y.I. ; Hal, P.S.

Author_Institution

Dept. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, UK

fYear

2005

fDate

7-9 March 2005

Firstpage

17

Lastpage

20

Abstract

The optimum choice of antenna for on-body communications is discussed in this paper. Several different antennas, including the monopole, the loop and patch and patch arrays have been fabricated and tested in the on-body environment. In particular, path gain measurements of two on-body paths has been performed for a range of body postures. It is clear that the monopole antenna performs best in most of the measurement cases. A first order analysis of the path loss, consisting of antenna gain deduced from link geometry and a free space loss appropriate to the path distance, give results that are within 10 dB of measurements for most body postures.

Keywords

loop antennas; microstrip antenna arrays; microstrip antennas; mobile antennas; monopole antennas; radiowave propagation; antenna gain; body postures; link geometry; loop antennas; monopole antennas; on-body communication systems; patch antenna arrays; patch antennas; path distance dependent free space loss; path gain measurement; path loss; Antenna arrays; Antenna measurements; Antennas and propagation; Belts; Gain measurement; Geometry; Loss measurement; Surface waves; Testing; Wrist;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on

Print_ISBN

0-7803-8842-9

Type

conf

DOI

10.1109/IWAT.2005.1460985

Filename

1460985