Radiation properties of wireless-sensor-targeted compact arrays loaded by ground defects

Kakoyiannis, CG; Angelopoulos, ES; Constantinou, P

dc.contributor.author	Kakoyiannis, CG	en
dc.contributor.author	Angelopoulos, ES	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T02:46:29Z
dc.date.available	2014-03-01T02:46:29Z
dc.date.issued	2009	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32669
dc.subject	Mobile Sensor Network	en
dc.subject	Mutual Coupling	en
dc.subject	Sensor Nodes	en
dc.subject	Wireless Sensor	en
dc.subject.other	Array performance	en
dc.subject.other	Compact arrays	en
dc.subject.other	Detuned	en
dc.subject.other	Far-field patterns	en
dc.subject.other	Ground planes	en
dc.subject.other	Minimal distortion	en
dc.subject.other	Mobile sensor networks	en
dc.subject.other	Mutual coupling	en
dc.subject.other	Printed monopoles	en
dc.subject.other	Radiation efficiency	en
dc.subject.other	Radiation properties	en
dc.subject.other	Total efficiency	en
dc.subject.other	Defects	en
dc.subject.other	Sensor networks	en
dc.subject.other	Sensor nodes	en
dc.subject.other	Wireless networks	en
dc.subject.other	Antennas	en
dc.title	Radiation properties of wireless-sensor-targeted compact arrays loaded by ground defects	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/LAPC.2009.5352374	en
heal.identifier.secondary	http://dx.doi.org/10.1109/LAPC.2009.5352374	en
heal.identifier.secondary	5352374	en
heal.publicationDate	2009	en
heal.abstract	Printed monopoles are suitable radiators for sensor nodes, and straightforward enablers of compact arrays. Arrays offer the advantage of diversity, which is a true enabler of mobile sensor networks. However, compact arrays with closely spaced elements become detuned and lose bandwidth, while mutual coupling hinders diversity. Prior studies described a simple and efficient technique to reduce coupling and regain the bandwidth by inserting a defect on the ground plane of the device; multidecibel coupling reduction was noted. This work describes the improvement in radiation efficiency and the minimal distortion of the far-field pattern caused by the insertion of the defect. Array performance was studied numerically in terms of broadband total efficiency and far-field pattern. ©2009 IEEE.	en
heal.journalName	Loughborough Antennas and Propagation Conference, LAPC 2009 - Conference Proceedings	en
dc.identifier.doi	10.1109/LAPC.2009.5352374	en
dc.identifier.spage	417	en
dc.identifier.epage	420	en