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1、ComputersandElectricalEngineering37(2011)875–885ContentslistsavailableatSciVerseScienceDirectComputersandElectricalEngineeringjournalhomepage:www.elsevier.com/locate/compelecengqWireantennasoptimizedusinggeneticalgorithma,⇑bSemaNurKırıcıKoç,AdnanKöks
2、alaDepartmentofElectricalandElectronicsEngineering,BasßkentUniversity,Ankara,TurkeybDepartmentofElectricalandElectronicsEngineering,HacettepeUniversity,Ankara,TurkeyarticleinfoabstractArticlehistory:Inthiswork,wireantennasaredesignedtojamGSMfrequenci
3、esusinggeneticalgorithms.Received4August2010Theseantennasaredesignedtoblockcommunicationat3-bandGSMfrequencies.TheyareReceivedinrevisedform26September2011plannedtobemountedonavehicleandthereforearemodeledonagroundplane.JammerAccepted27September2011an
4、tennasdesignedinthisworkarecomposedofwires,placedontwosquaredielectricAvailableonline1November2011frames,perpendiculartoeachother.GeneticoptimizationroutinesaredevelopedonMAT-LABenvironmentforthedesignscarriedoutinthiswork.Electromagneticsimulationpr
5、o-gramcalledSuperNEC,whichanalysesantennasbythemethodofmoments,isusedtodeterminetheantennaperformancesandiscalledbythedevelopedGAroutines.Thepur-poseoftheantennaoptimizationistoobtainlowVSWRvaluesandomni-directionalradi-ationpatternneargroundath=[70°
6、80°90°]planesatallGSMfrequencies,sincethetargetswillbeneargroundforthisapplication.Originalandinterestingantennadesignsareobtainedastheresultofgeneticoptimization,andarepresentedinthepaper.Ó2011ElsevierLtd.Allrightsreserved.1.IntroductionWiththeadven
7、tofcomputertechnology,numerouskindofcomputeraidedantennadesigntechniquesaredevelopedoverthelastyears.Geneticoptimizationisoneofthesedesigntechniques[1,2].Geneticalgorithmdoesnotrequireaveryintelligentinitialguessandtheamountofrequiredinformationabout
8、thedesignisverysmallwhencomparedtothatofotherantennadesigntechniques.Also,whileothertechniqueslimitthedesignswithsymmetric,simpletounderstand,incomplexstructures,geneticalgorithmsallowvariouskindsofcomplexdesigns.Manystudiesassociatedwithwireantennad
