Title :
Reduced groundplane shorted patch antenna for on-body communications
Author :
Chandran, Anupam R. ; Scanlon, William G.
Author_Institution :
Inst. of Electron., Commun. & IT (ECIT), Queen´´s Univ. of Belfast, Belfast, UK
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.
Keywords :
antenna radiation patterns; body area networks; microstrip antennas; muscle; phantoms; frequency 2.45 GHz; gain -44.7 dB; groundplane shorted patch antenna; impedance bandwidth; muscle tissue phantom; on-body communication; radiation efficiency; Antennas and propagation; Bandwidth; Dielectric substrates; Feeds; Imaging phantoms; Impedance; Microwave antennas; Mobile antennas; Muscles; Patch antennas;
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
DOI :
10.1109/LAPC.2009.5352402
