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1、392IEEEANTENNASANDWIRELESSPROPAGATIONLETTERS,VOL.6,2007Aperture-CoupledPatchAntennaforIntegrationIntoWearableTextileSystemsCarlaHertleer,AnneleenTronquo,HendrikRogier,SeniorMember,IEEE,LuigiVallozzi,andLievaVanLangenhoveAbstract—Theemergenceofwearabletextilesystemsinrecentyearsexhibitedth
2、eneedforwirelesscommunicationtoolsintegrat-ableintogarments.Inliterature,severalplanarantennadesignsbasedontextilematerialshavebeenpresented,however,withoutanadaptedfeedingstructureforwearableapplications.Anaper-ture-coupledpatchantenna(ACPA)meetsthisrequirementsincetherigidcoaxialfeedisr
3、eplacedbyamicrostripfeedlinethatcou-plesitspowerintotheantennathroughanapertureinthegroundplane.ThisletterpresentsthefirstACPAentirelymadeoutoftex-tilematerial.Theresultisahighlyefficient,fullyflexible,andwear-ableantennathatisintegratableintogarments.IndexTerms—Microstrippatchantenna,smartt
4、extiles,textileantenna,wearableelectronics.I.INTRODUCTIONFig.1.ApertureCoupledPatchAntenna.HEso-calledwearabletextilesystemsaimatimprovingTourqualityoflifebyenhancingthefunctionalitiesoffeedlinebelowtheantennagroundplane,whichshieldstheclothingthroughacombinationoftextilesandelectronics.f
5、eedlineandthetransceiverfromtheradiatingantenna.TheThisnewgenerationofgarmentshavetheabilitytomonitorpowerinthemicrostripfeedlineiscoupledintotheantennathewearersbiosignalsandcommunicatethesedatawiththepatchthroughanapertureinthegroundplane,resultinginenvironmentinordertoprovidecontinuous
6、informationaboutanaperture-coupledpatchantenna(ACPA).Thisresearchapersonsstateofhealth.ButawirelesscommunicationlinkhasledtothedevelopmentofanACPAentirelymadeoutofbetweenthegarmentandabasestationrequiresantennas.Op-textilematerials.Furthermore,themultilayeredstructureofthetimalintegration
7、ofanantennaintoagarmentcanbeachievedantennaallowsanoptimalselectionofantennasubstrateandbymakingtheantennaitselfoutoftextilematerial.Theavail-feedsubstratematerial,notonlyintermsofelectromagneticabilityofconductivetextilematerials,knownaselectrotextiles,propertiesbu
