圆柱共形阵列天线与机载天线分析

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1、II圆柱共形阵列天线与机载天线研究万方数据AbstractIAbstractTheresearchworksofthethesisaremadewiththescientificprojects.Themainresearchworksaredividedintotwoparts:theconformalarrayantennaprototypeforcylinderplatformisintroducedinthefirstpart,whichachievesthetechnicalparametersandhasthegoodapplicationeffect.Thenthep

2、rototypeofdual-bandairborneantennaforUHFbandispresentedinthesecondpart,themeasuredresultsshowgoodagreementwiththerequirementsandhasthegoodapplicationeffect.Themaincontextsofthethesisareasfollows:Firstly,accordingtotheprojectrequirementsoftheconformalarrayantennaforcylinderplatform,theconformal

3、arrayonthedevelopmenthistory,applicationareaandcurrentstateoftheresearchareintroduced.Thedesigndifficultiesarethathowtoachievewidebeampatternandcircularpolarizationcharacteristicsforcylindricalconformalantennaarray.Andthedesignmethodsoftheantennaarediscussed.TheantennasaresimulatedbyAnsoftHFSS

4、.Thesimulationresultsshowthatintheantennaworkingband,theVSWRislessthan1.2,thePolarizationisRHCPandGainisgeaterthan0dB.OnthebasisofAnsoftHFSSsimulationandanalysis,thephysicalprototypeismanufacturedandmeasured.ThemeasuredresultsshowthattheVoltagestandingwaveratio,polarizationmodeandpatternofthed

5、esignedcylinderconformalantennaarrayallmeettheengineeringrequirements.Secondly,accordingtotherequirementsofairborneantenna,theconceptsandfeaturesofairborneantennaareintroduced,andthecurrentstateofairborneantennaarediscussed.Thedesigndifficultiesarethathowtoachievewidebeampatternandminiaturizat

6、ioncharacteristicsfortheairborneantenna.Andthedesignmethodsoftheairborneantennaarediscussed.TheantennaaresimulatedbyAnsoftHFSS.Onthebasisofthesimulation,theprototypeofantennasarefabricatedandmeasured.Themeasuredresultsshowthatintheantennaworkingband,theVSWRislessthan1.9andthepolarizationisline

7、rpolarization.Intherangeof0°~90°inelevation,thegainisgreaterthan-6.5dB.Therefore,itisavailableforthisdesigntobeappliedinengineering.Keyword:cylinderconformalarraydual-bandairborneantenna万方数据II圆柱共形阵列天线与机载天线研究万方数据目录I目录摘要..................