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一种W波段带状注行波管电子枪的模拟设计.docx

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一种W波段带状注行波管电子枪的模拟设计 Title:DesignandSimulationofaW-BandTravelingWaveTubewithaStripLineElectronGun Abstract: ThispaperpresentsthedesignandsimulationofaW-bandtravelingwavetube(TWT)withastriplineelectrongun.TheobjectiveistodevelopahighfrequencyelectrongunthatcangenerateandefficientlyamplifyW-bandelectromagneticwaves.Thedesignandsimulationincludetheelectrongun,interactionregions,helixstructure,andoutputcollectors.Theproposeddesignhasbeensimulatedusingadvancedindustry-standardsoftwareanditsperformanceevaluated.TheresultsdemonstratethefeasibilityandpotentialofthestriplineelectrongunforW-bandTWTapplications. 1.Introduction: TravelingWaveTubeAmplifiers(TWTAs)arecriticalcomponentsofhighpowermicrowavesystemsusedinvariousapplications,suchassatellitecommunications,radarsystems,andhigh-energyphysicsexperiments.Tomeetthedemandforhigherfrequencyoperation,thispaperfocusesonthedesignandsimulationofaW-bandTWTwithastriplineelectrongun.Thestriplineelectrongunoffersseveraladvantagesforhigh-frequencyapplications,includingcompactness,lessbeamemittance,andreducedhigherorder-modeexcitation. 2.DesignoftheStripLineElectronGun: Thestriplineelectrongunconsistsofarectangularwaveguide,whichactsasthebeamtunnel.Theelectronbeamisemittedfromahollowcathodeandfocusedontoametalstripsituatedalongthecentralaxisofthewaveguide.Thestriplinestructureprovidesanefficientmethodtoconfineandguidetheelectronbeamtowardsthehelixstructureforwaveinteraction. 3.SimulationoftheElectronGun: Theelectromagneticsimulationsoftwareisemployedtoanalyzeandoptimizethestriplineelectrongun.Thesimulationinvestigatestheelectronbeamemissioncharacteristics,beamfocusing,andtheeffectofbeamenergyontheelectronvelocityandcurrentdensitydistribution.Thegoalistoachieveanidealelectronbeamwithoptimumfocusingandminimalbeamdivergence. 4.HelixStructureandInteractionRegions: Thehelixstructureisresponsiblefortheefficientinteractionbetweentheelectronbeamandthetravellingwave,leadingtoamplification.Thedesignofthehelixstructureiscrucialtoensureproperwave-p