›› 2017, Vol. 37 ›› Issue (1): 111-116.doi: 10.16708/j.cnki.1000-758X.2017.0020

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Dumpingeffectofmicrowavesignalinplasmaslabswithsub-wavelengthcharacteristicsaroundspacecraft

 WANG  Zhi-Bin1,2,*,KONG  Fan-Rong3,  E  Peng1, LIANG  Yin-Chuan4,ZHAO  Yuan4   

  1. 1LaboratoryforSpaceEnvironmentandPhysicalSciences,HarbinInstituteofTechnology,Harbin150001,China〖JP〗
    2DepartmentofPhysics,HarbinInstituteofTechnology,Harbin150001,China
    3SchoolofElectricalEngineeringandAutomation,HarbinInstituteofTechnology,Harbin150001,China
    4ChinaAcademyofSpaceTechnology,Beijing100094,China
  • Received:2016-08-23 Revised:2016-11-21 Online:2017-02-25 Published:2017-01-24

Abstract: Aphysicalmodelforthepropagationcharacteristicsofelectromagneticwavesinthesub-wavelengthplasmawasestablished.Thetransmissionofelectromagneticwavesinthethin-layersurfaceofthereentryspacecraftwasstudiedfortheelectromagneticwaveinthecommunicationfrequencyband.TheproposedmodelwasbasedontheMaxwell′sequations,andadifferentialthinlayermethodwasusedtosolvetheproblem.Thetransmissioncharacteristicsandpropagationlawsoftheelectromagneticwaveinsubwavelengthplasmawereobtainedunderdifferentplasmadensities.Theeffectsofthecutoffreflectionandthecollisionalabsorptionwererevealed.Thisstudyisofgreatsignificanceforunderstandingthepropagationcharacteristicsofelectromagneticwavesinsub-wavelengthcollisionalplasmas.

Key words: plasma, sub-wavelength, microwave, strongcollision, reentryspacecraft