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1、ABSTRACTRadioFrequencyIdentification(RFID，RadioFrequencyIdentification)technologyisthetwenty—firstcenturyoneofthemostcutting-edgeinformationtechnology,RFIDistheUSeofnon-contactradiofrequencytwo—waycommunicationmeans，toachieveautomatictargetrecognitionandaccesstorelevantdata,technical，andothermeansof
2、identification，thetechnologyhasahi曲recognitionaccuracy,speed,environmentaladaptability,andmanyotheradvantages．Currently，RFIDinmanufacturing，transportation,security,food,residentidentitycards，managememandotherareasshowawiderangeofapplications，SOthetheoryofRFID·relatedtechnologyresearchhasimportantthe
3、oreticalsignificanceandapplicationvalue．RFIDreaderantennaisakeypartofthesystem,soit’Sessentialtoresearchanddesign．Inthisthesis，theUltraHighFrequency(UHF,UltraHighFrequency)bandRFIDreaderantennahasbeenstudiedwiththedesign，thepaperfastintroducesRFID-relatedknowledge，andanimportantindicatoroftheantenna
4、madeabriefintroduction；followedtheprincipleofmicrostripantennasandapplicationsanditsadvantagesanddisadvantagesdointroduced,focusingonanalysisofmicrostripantennastwomethods-transmissionlinemodelandcavity-modetheory,anddesignedamicrostripantennaarrayinthedesignoflaterusingitasareaderantennaarrayelemen
5、t．Thenpowersplitterandphaseshifterknowledgeanddesignrequirementswereintroduced,andtodesignapowerspliRerandphaseshifterbasedmicrostriptransmissionlinedesign．ThedesignofthepowerdivideristheWilkinSOnpowerspliRer,asecondpowerdistributionpoints；thedesignofphaseshiftershavetwosignaltransmissionlines,RFswi
6、tchcontrolsignallineselection．Powerdivider'phaseshifterparameterswemtestedtomeetthedesignrequirements．Finally,theknowledgeoftheantennaarrayanalysisandpresentation,andtodesignanarrayofRFIDreaderantenna,usingMATLABprogrammingsimulationresultsshowthattheantennaarraybeamswitchingcanbeachieved,thentheUSe
7、ofpreviouslydesignedmicrostripantenna(arrayelement)，splicers，phaseshiftersdesignedanarrayantenna．Simulationandtestresultsshowthattheantennabeamsw鼬ingc锄beachieved，theswitchingangleis士30。，thearray觚tcnna
