Compact printed arrays with embedded coupling mitigation for energy-efficient wireless sensor networking

Kakoyiannis, CG; Constantinou, P

dc.contributor.author	Kakoyiannis, CG	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T01:33:01Z
dc.date.available	2014-03-01T01:33:01Z
dc.date.issued	2010	en
dc.identifier.issn	1687-5869	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20279
dc.subject	Energy Efficient	en
dc.subject	Wireless Sensor Network	en
dc.subject.other	Active impedance	en
dc.subject.other	Antenna efficiency	en
dc.subject.other	Compact arrays	en
dc.subject.other	Computational results	en
dc.subject.other	Coupling suppression	en
dc.subject.other	Energy efficient	en
dc.subject.other	Future applications	en
dc.subject.other	Ground planes	en
dc.subject.other	In-band	en
dc.subject.other	Life span	en
dc.subject.other	Monitoring services	en
dc.subject.other	Mutual coupling	en
dc.subject.other	Narrow bands	en
dc.subject.other	Pattern distortion	en
dc.subject.other	Resourceconstrained devices	en
dc.subject.other	Sensor mobility	en
dc.subject.other	Signal correlation	en
dc.subject.other	Small size	en
dc.subject.other	Wireless sensor	en
dc.subject.other	Receiving antennas	en
dc.subject.other	Sensors	en
dc.subject.other	Bandwidth	en
dc.title	Compact printed arrays with embedded coupling mitigation for energy-efficient wireless sensor networking	en
heal.type	journalArticle	en
heal.identifier.primary	10.1155/2010/596291	en
heal.identifier.secondary	http://dx.doi.org/10.1155/2010/596291	en
heal.identifier.secondary	596291	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Wireless sensors emerged as narrowband, resource-constrained devices to provide monitoring services over a wide life span. Future applications of sensor networks are multimedia-driven and include sensor mobility. Thus, sensors must combine small size, large bandwidth, and diversity capabilities. Compact arrays, offering transmit/receive diversity, suffer from strong mutual coupling (MC), which causes lower antenna efficiency, loss of bandwidth, and signal correlation. An efficient technique to reduce coupling in compact arrays is described herein: a defect was inserted in the ground plane (GNDP) area between each pair of elements. The defect disturbed the GNDP currents and offered multidecibel coupling suppression, bandwidth recovery, and reduction of in-band correlation. Minimal pattern distortion was estimated. Computational results were supported by measurements. The bandwidth of unloaded arrays degraded gracefully from 38 to 28 with decreasing interelement distance (0.25λ to 0.10λ). Defect-loaded arrays exhibited active impedance bandwidths 37-45, respectively. Measured coupling was reduced by 15-20dB. Copyright © 2010 C. G. Kakoyiannis and P. Constantinou.	en
heal.publisher	HINDAWI PUBLISHING CORPORATION	en
heal.journalName	International Journal of Antennas and Propagation	en
dc.identifier.doi	10.1155/2010/596291	en
dc.identifier.isi	ISI:000284949100001	en
dc.identifier.volume	2010	en