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ID:33222933
大小:25.26 MB
页数:89页
时间:2019-02-22
《基片集成宽带天线和多频段多极化天线的分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据ABSTRACTInvestigationsonSubstrateIntegratedWidebandAntennasandMulti..BandMulti..PolarizationAntennasM.S.Candidate:ZHANGTaoSupervisor:Prof.HONGWeiandProf.WUKeStateKeyLaboratoryofMillimeterWaves,SchoolofInformationScienceandEngineering,SoutheastUniversity,Nanjing,210096,P.R.ChinaAbstractAnt
2、ennasareessentialpartsofmicrowaveandmillimeterwavesystemssuchasmobilecommunications,satellitecommunications,radarandnavigations.附(ingintoconsiderationthetrendsofcompactness,multi.bands,multi.functionsforsuchsystems,theintegratedantennasareattractingmoreandmoreresearchfocus.T11iSdissertationin
3、vestigatesthesubstrateintegratedwidebandantennasandmultiplebandantennas.Thedissertationisorganizedasfollows:CHAPTERONEproposesaQ.banddual.modewidebandpatchantennaelementanda2x2arraybasedontheSubstrateIntegratedWaveguide(SIW)technologyforplanarintegration.First,byloadinganinductiveviaandacapac
4、itiveannularslot,anewindependently.controllableresonanceisintroducedtothetraditionalpatchantenna,whichexpandsthebandwidthfrom6.9%to12.4%.Then.the打aditionalcircuitmodelfortheconventionalcoaxial.fedpatchantennaisimprovedbyintroducingamutualinductor,andanequivalentcircuitisdevelopedforthedual.mo
5、deantennaelement.Moreover,a2x2widebandarraybasedontheSIWtechnologyisdesignedandtested.Themeasuredimpedancebandwidth(returnlossbelow.10dB)and2dBgainbandwidthofthearrayreach12.7%and13.95%.respectively.TheworkofthischapterhasbeenpublishedintheintemationalconferenceofI湖’2013.CHAPTERTWOproposesaty
6、peofQ-bandwidebandcircularlypolarized(CP)antennaelements,andantennaarraybasedonthelowCOstsingle.1ayerPrintedCircuitBoard(PCB)process.First.byemployingtheSIWtechnology,anewmillimeter—wavewidebandCPantennaiSproposedwiththeaxialratio(AR)andtheimpedancebandwidthwiderthan20%(from38GHzto47GHz).Then
7、.byintroducingthesecond—orderinductivewindow,the1dBgainbandwidthoftheantennaelementisexpandedfrom3GHzto9GHzwiththeARandimpedancebandwidthalmostunchanged.Finally,thebandwidthpropertiesofthetraditionaldual.feddual—polarizationpatchantennaarrayu
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