Conference Proceeding

Reduced groundplane shorted patch antenna for on-body communications

Inst. of Electron., Commun. & IT (ECIT), Queen's Univ. of Belfast, Belfast, UK
12/2009; DOI:10.1109/LAPC.2009.5352402 pp.409 - 412 In proceeding of: Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Source: IEEE Xplore

ABSTRACT This paper introduces a compact, low profile shorted patch antenna designed for on-body communication at 2.45 GHz. The proposed antenna operates with a small (~¿/5 dimension) groundplane yet maintains a reasonable radiation efficiency of 50.9 % when in close proximity to a muscle tissue phantom. The antenna has more than sufficient impedance bandwidth for the 2.45 GHz band (126 MHz for |S11|<-10 dB), yet its overall height is only 5.75 mm or ¿/21. For on-body communications, a maximum |S21| path gain of -44.7 dB was obtained at 2.45 GHz.

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Keywords

compact
 
muscle tissue phantom
 
on-body communication
 
on-body communications
 
reasonable radiation efficiency
 
small
 
sufficient impedance bandwidth
 

A.R. Chandran