Pattern Switching Compact Patch Antenna for On-body and Off-body Communications at 2.45 GHz


Autoria(s): Chandran, Anupam R.; Conway, Gareth A.; Scanlon, William G.
Data(s)

01/03/2009

Identificador

http://pure.qub.ac.uk/portal/en/publications/pattern-switching-compact-patch-antenna-for-onbody-and-offbody-communications-at-245-ghz(9238997b-5097-4548-bf1e-0cf25e0887e8).html

http://www.scopus.com/inward/record.url?scp=70349880738&partnerID=8YFLogxK

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Chandran , A R , Conway , G A & Scanlon , W G 2009 , Pattern Switching Compact Patch Antenna for On-body and Off-body Communications at 2.45 GHz . in 2009 3rd European Conference on Antennas and Propagation . European Conference on Antennas and Propagation. Proceedings , pp. 2055-2057 , 3rd European Conference on Antennas and Propagation , Berlin , Germany , 1-1 March .

Tipo

contributionToPeriodical

Resumo

The ability to switch between propagating modes is important for body-centric applications such as medical body area networks where a single node may need to be able to optimise communications for either on-body sensor links or off-body links to the wider network. Therefore, we present a compact 2.45 GHz active mode-switching wearable antenna for both on-body and off-body wireless communications. The single-layer patch antenna was pattern-switched using shorting pins and had an impedance bandwidth of 253 MHz and 217 MHz for the on-body and off-body radiating modes, respectively. An efficiency of 57 % and 56.8 % was obtained for on-body and off-body mode respectively when placed in close proximity to a phantom that represents a muscle issue at 2.45 GHz.