Design of circular switched parasitic dipole arrays using a genetic algorithm

Varlamos, PK; Papakanellos, PJ; Capsalis, CN

dc.contributor.author	Varlamos, PK	en
dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:20:08Z
dc.date.available	2014-03-01T01:20:08Z
dc.date.issued	2004	en
dc.identifier.issn	10689605	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15848
dc.subject	Circular switched parasitic dipole arrays	en
dc.subject	Electronic beam steering	en
dc.subject	Genetic algorithms	en
dc.subject	Induced EMF method	en
dc.subject	Method of moments	en
dc.subject.other	Bandwidth	en
dc.subject.other	Computer simulation	en
dc.subject.other	Dipole antennas	en
dc.subject.other	Directional patterns (antenna)	en
dc.subject.other	Genetic algorithms	en
dc.subject.other	Impedance matching (electric)	en
dc.subject.other	Intersymbol interference	en
dc.subject.other	Method of moments	en
dc.subject.other	Optimization	en
dc.subject.other	Short circuit currents	en
dc.subject.other	Switching systems	en
dc.subject.other	Antenna design	en
dc.subject.other	Circular switched parasitic dipole arrays	en
dc.subject.other	Electronic beam steering	en
dc.subject.other	Induced EMF method	en
dc.subject.other	Antenna arrays	en
dc.title	Design of circular switched parasitic dipole arrays using a genetic algorithm	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10776-004-1241-2	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10776-004-1241-2	en
heal.publicationDate	2004	en
heal.abstract	Circular switched parasitic dipole arrays are designed in this letter, using the method of genetic algorithms. Three possible configurations are proposed: a simple circular array with one element driven and the others short-circuited, and two implementations of double-ring array. In the latter case, an inner ring of parasitic elements is added. Electronic steering is achieved through switching of the elements by circular permutation. The aim of the design is to obtain a desired radiation pattern, and to achieve impedance matching of the single active element. The arrays are simulated with the SuperNEC2.4 package and the induced emf method. Double-ring arrays offer better patterns and more accurate impedance matching than simple circular arrays at 1.8 GHz. The designed arrays achieve SWR values below 2.5 from 1.7 to 1.9 GHz. The radiation patterns remain satisfying in an average bandwidth equal to 6.5% of the carrier frequency.	en
heal.journalName	International Journal of Wireless Information Networks	en
dc.identifier.doi	10.1007/s10776-004-1241-2	en
dc.identifier.volume	11	en
dc.identifier.issue	4	en
dc.identifier.spage	201	en
dc.identifier.epage	206	en