中国空间科学技术

Chinese Space Science and Technology ›› 2017, Vol. 37 ›› Issue (2): 11-18.doi: 10.16708/j.cnki.1000-758X.2017.0026

Previous Articles     Next Articles

MicrowavepowertransmissiondemonstrationsystemdesignforSpaceSolarPowerStation

DONG  Ya-Zhou1,2, DONG  Shi-Wei2,*, WANG  Ying1,2, FU  Wen-Li2,LI  Xiao-Jun2,GAO  Shi-Chang1,WEI  Gao1   

  1. 1SchoolofElectronicsandInformation，NorthwesternPolytechnicalUniversity，Xi′an710129，China
    2NationalKeyLaboratoryofScienceandTechnologyonSpaceMicrowave，ChinaAcademyofSpace Technology（Xi′an），Xi′an710100，China
  • Received:2016-11-03 Revised:2017-02-04 Published:2017-06-25 Online:2017-05-18

PDF (PC)

1286

Abstract: Microwavepowertransmission（MPT）isoneofthekeytechnologiesinSpaceSolarPowerStation（SSPS）.Thestate-of-the-artresearchesandvalidationsonlyfocusonindividualtechnologybutlackofcomprehensiveoptimizationforSSPSsystem.AccordingtotheoperatingmodeofSSPS，ademonstrationsystemwasproposedtovalidatemicrowavepowertransmissioninSSPS.ThetransmittingantennaarrayandrectennaarrayweredesignedbyusingintegratedprocessingwithapproximateGaussianfielddistributionintransmittingantennaarrayandlowreflectiondesigninrectennaarray.Thebeamcontrolmethodinthesystemwasbasedondirectionofarrivalestimationbysendingpilotsignalandbeamsynthesisbycontrollingthephaseshiftersinthetransmittingantennaarray.Theanalyzedbeamcollectingefficiencyofdemonstrationsystemis94.2%，about17.6%higherthanthetraditionaluniformdistributionsystem.ThedemonstrationsystemcomprehensivelysimulatestheMPTofSSPSinseveralways，includingsystemscaleminification，transmittingantennafielddistribution，etc，powerdensityandbeamcontrollinganditcanbethepromotionofSSPSdevelopment.

Key words: SpaceSolarPowerStation, microwavepowertransmission, fielddistribution, rectennaarray