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1、iiC波段波ᇐ缝隙䰉߫线的ߚ析Ϣ设计AbstractiiiAbstractWaveguideslotarrayantennahastheadvantagesoflowlosssupply,highefficiency,powercapacityandcompactstructure.Meanwhile,becauseofthedistributionontheapertureofthewaveguideslotarrayantennacanbeeasilycontrolled,itiseasytorealizethenarro
2、wbeam,shapedbeam,lowsidelobeandultra-lowsidelobe.Soitisthepreferredformofantennainmicrowavecommunicationandradarsystems,whichneednarrowbeamantennasandshaped-beamantennas.Thedesignofwaveguideedgeslotarrayandtheshaped-beamtechnologyhavebeenstudiedfromthefollowingaspect
3、sinthispaper:Firstly,thebasicprincipleofwaveguideslotarrayisintroduced,andwediscussthecalculationofthedistributionofslotsconductancewiththemethodsoftraveling-waveapproximationandequivalentcircuitsindetail.Thenthetheoryofmutualcouplingisanalyzed.Secondly,non-resonantw
4、aveguideedgeslotarrayhasbeendesignedbasedontheresearchofthetheory.Astheelementofone-dimensionalscanningphasedarrayantenna,theradiationpatternofthenarrowwallwaveguideslotarrayonthehorizontalhavingthecharacteristicsofnarrowbeamandlowsidelobeisrequired.Bycombiningthethe
5、oryofwaveguideslotarrayandtheelectromagneticcomputingsoftware,theslotconductancefunctionhasbeenobtainedintwomethods.Thenchoosethebetterresulttofurtheroptimize.Byemployingtheoptimizedmethodologyofmakingtheamplitudeandphasedistributionofthenearfieldapproachthetheoretic
6、alvalue,theradiationperformanceofthearraycanmeettheindicator.Andtheinfluenceofradomeontheradiationperformanceoftheantennaisdiscussedbasedontheoptimizedresult.Atlast，thefundamentaltheoryofshaped-beamtechnology,MatrixresolutionandParticleSwarmOptimizationAlgorithmarein
7、troduced.BycombiningParticleSwarmOptimizationAlgorithmandMatrixresolution,theproblemofbeamforminginpracticalapplicationhasbeenresolved.Withthemethodmentionedabove,thebeamshapedprecisioncanbesignificantlycontrolledandtheamplitudeandphasedistributionofshapedbeamcanbeca
8、lculated.Keyword:waveguideedgeslotarraynon-resonantParticleSwarmOptimizationshaped-beamivC波段波ᇐ缝隙䰉߫线的ߚ析Ϣ设计目录v目录目录目录第一章绪论...........
