›› 2017, Vol. 37 ›› Issue (2): 73-80.doi: 10.16708/j.cnki.1000-758X.2017.0040

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Anovelsimulationmethodofmultipactorincomplexcomponentforsatelliteapplication

 LI  Yun1,2, CUI  Wan-Zhao2,*, ZHANG  Hong-Tai2, YIN  Xin-She2, WANG  Hong-Guang1, ZHANG  Jian-Feng3, HE  Yong-Ning1   

  1. 1KeyLaboratoryofPhysicalElectronicsandDevicesoftheMinistryofEducation,Xi′anJiaotongUniversity,Xi′an710049,China
    2ScienceandTechnologyonSpaceMicrowaveLaboratory,ChinaAcademyofSpaceTechnology(Xi′an),Xi′an710100,China
    3StateKeyLaboratoryofMillimeterWaves,SoutheastUniversity,Nanjing210096,China
  • Received:2016-08-31 Revised:2017-01-17 Online:2017-04-25 Published:2017-03-17

Abstract: Withthedevelopmentofhighpowerandminiaturizationinsatellitepayload,accuratesimulationandthresholdanalysisformultipactorin   complexcomponentbecomesbottleneckproblem.Basedontheparticleincelltechnologyandthesecondaryelectronemissiontheory,athreedimensionalsimulationmethodformultipactorwaspresented.Thenumericalalgorithmwasselfconsistentsincetheinteractionbetweenelectromagneticfieldsandparticleswasproperlymodeled.Thegenerationofmultipactoris   visualized,  sothat adeepinsightintothephysicalmechanismsofthiseffectwasgained.Inordertovalidatethemethod,multipactionintheimpedancetransformerwasstudied.Byanalyzingtheevolutionoftheelectronnumbersobtainedbyourmethod,multipactorthresholdsofthesecomponentswereestimatedandthemostsensitivepositionswheremultipactoroccurswerevisualized.Theresultsshowgoodagreementwiththeexperimentalresultsandthesimulationerrorislessthan1.2dB.

Key words: space, highpower, multipactor, numericalsimulation, passivecomponent