第21届南京地区研究生通信年会论文集 C

713(1.210007email:[e-mail]2.2KaSIWSIWKaKaAMiniatureSIWstructureUsedinKa-bandSatelliteCommunicationSystemCONGZhi-peng1GAIZheng-xiang2,TANHuan2,WANGJian-gong2(1.DepartmentofSatelliteCommunicationICE,PLAUSTNanjing210007,China,email:[e-mail];2.PostgraduateTeam2ICE,PLAUST)AbstractSatellitecommunicationsystemisanimportantpartofadvancedcommunicationsystem,anditisveryimportanttobeusedformartialapplication.Thesatellitecommunicationmustexpandtomorehighfrequencyrange(Ka-band)sincetheincreaseofoperationrequirement.Anewtransmissionminiaturesubstrateintegratedwaveguide(SIW)structureproposedinthispaper,thisnewstructurecankeepthepropagationcharacteristicswithhalfsizeofconventionalSIWstructure.ThisnewstructuresolvetherequirementofmicrowavecomponentsinKa-bandsatellitecommunicationsystemwhichhavemuchpracticalvalue.KeywordsKa-band;satellitecommunicationsystem;miniature;substrateintegratedwaveguide714SIW1(a)axsyd1(b)bSIWazxasdXYba1Wu[3]SIW0.2Sλ/0.5Sd≤0.2λSIW221.02.0cmnmnfabπππεµ⎛⎞⎛⎞=+⎜⎟⎜⎟⎝⎠⎝⎠110TE1101.02.0cfaεµ=2aKa18GHz40GHz18GHz11.92a2.42mm120GHza2.8mm11kaSIWabsdrε2.8mm0.5mm0.1mm0.3mm11.9715HFSS30S152025303540-70-60-50-40-30-20-1002KaSIWS2SIWS2120GHz40GHz0SIWS1120GHz40GHz-25dBKaSIWSIWSIWTE10TE10EyxSIW2rSIWSIWaaasdXYZXbrε3SIW7163SIWbSIWa/2SIWaa/22.3KaSIWSIWSIWSIW4152025303540-70-60-50-40-30-20-1004KaSIWSIWS4SIWSSIWS20GHz40GHzSIWSIWS210S11SIW3dB-20dBSSIWSIWSIWSIWSIWKaKaSIW[1],KaMILSATCOM,1998(3):1619[2]Ka200122(9):6169[3]DominicDeslandes,KeWu,Single-SubstrateIntegrationTechniqueofPlanarCircuitsandWaveguideFilters,IEEETransactionsonMicrowaveTheoryandTechniques,2003,51(2):59359671712(210096):CSTXYFSSFSSFSS:AnalysisofReflectionCharacteristicsofActiveFrequencySelectiveSurfacesKouSongjiang1,XuJinping2(StateKeyLaboratoryofMillimeterWaves,SoutheastUniversityNanjingChina210096)Abstract:Theresonantperformancesofseveralactivefrequencyselectivesurfaces(FSS)areanalyzedusingCSTsimulators.TheFSSstructures,whicharebasedonsquareloadedslot,four-leggedloadedslotandthree-leggedloadedslotresonators,areloadedbyactivecomponentswhicharerepresentedbylumpedreactiveelements.TheirrelevantresonantperformanceswithvariousloadingaresimulatedinXband.ThecorrespondingresultscanactastheoreticalreferencesinanalysisanddesignofFSS.Keywords:Activefrequencyselectivesurface,reactiveloading,reflectioncoefficientFSSFSS,FSSFSSFSSPINFSSFSS[1]FSS[2][3],FSS,FSS[4]CSTFSSXYFSS,FSSA.E.MartynyukFSS[5]FSS1,0.102mmrε=2.4,r1=4.03mm,r2=3.5mm,Dx=11.43mm,Dy=10.13mm,1Ey[5]718CSTFSS21FSS2FSS3,0.1mmrε=2.4,Dx=Dy=10mml1=7.28mml2=6.28mm,3EyFSS12GHzC=0.050.100.15pFL5nH3nHR=2ΩFSS43FSS4FSSFSS5,0.1mmrε=2.4,Dx=Dy=10mml1=7.94mml2=6.94mm,l3=2mm,l4=1mm,5EyC=0.050.100.15pF,R=2ΩL3nH5nH6FSS11.56GHzFSS719,FSS5FSS6FSSYFSS7,0.1mmrε=2.4,Dx=Dy=10mm,l1=3.97mml2=3.47mm,l3=2mm,l4=1mm,7Ey8FSS12.072GHzC=0.050.100.15pF,R=2ΩL3nH5nH8FSSFSS7YFSS8YFSSYFSSFSS,FSS,,;,,720YFSSFSSFSS[1]MPhilippakis,CMartel,DKemp,etc..ApplicationofFSSstructurestoselectivelycontrolthepropagationofsignalsintoandoutofbuildings.U.K.:ERATechnolgyLimited,2004.[2]CMias.Frequencyselectivesurfacesloadedwithsurface-mountreactiveopponents.IEEElectron.Lett.,vol.39,no.9,May2003:724-726[3]LEPP,CCHANandRMittra.ThestudyofFSSsurfaceswithvaryingsurfaceimpedanceandlumpedelements.IEEEInt.AntennasPropagationSymp.Dig.,Vol.2,Jun.1989:1056-1059[4]TKChang,RJLangleyandEAParker.Activefrequency-selectivesurfaces.IEEProc.,Microw.,AntennasPropag.,Vol.143,no.1,Feb.1996:62-66[5]AEMartynyuk,JIMartinezLopezandNAMartynyuk.IEEElectron.Lett.,vol.41,no.1,Jan.2003:2-4721:3-5GHzUWB:MeasurementandPerformanceAnalysisofShortRangeUWBGeneralizedChannelfrom3to5GHzLiuMenglong,TaoJie,ChenYan(LaboratoryofWirelessCommunicationandEMC,NanjingUniversityofPostsandTelecommunications;NanjingJiangsu;210003)Abstract:Inthispaper,frequencydomaincharacteristicofshortrangeUWBgeneralizedchannelfrom3to5GHzwasmeasuredusingvectornetworkanalyzer.Basedontheseresults,impulseresponseofthegeneralizedchannelwasachievedandusedasthechannelmodelinamulti-band-basedOFDMsimlator.Frommeasuredandsimulatedresults,itisobservedthattheperformanceofUWBsystemissensitivetothetransimissionandreceiveantennapair.ThusthemethodproposedinthispapermaybeusefulfortheperformanceevaluationandtheoptimalchoiceofUWBantennas.Keywords:UWB,generalizedchannel,channelmeasurement,OFDMUWB[1][2][3]-VectorNetworkAnalyzer,VNA1VNA1f1-f2VNA27221∑=−=Llllttr1)()(τδα1LlllR(f)R(f))()()(0fffrectfRfRVNA∆−=2rect(·)f0f(1)(3GHz)(5GHz)Blackman(2)2VNAf1f20f10-f200f212IFFTns*0-2f-1f2f1fGHz02723(3)RMS6dB3456LOSNLOS35cm3LOS4LOS5NLOS6NLOSUWB[5]MB-UWBQPSK128500MHz528MHz528MHz1584MHz53.3Mbps110Mbps160Mbps200Mbps320MbpsOFDMOFDM7UWB724200Mbps[5]3.168-4.752GHz71h(t)f0f0)()(0ffRfcVNA+=(3)88935cm120cm40cm40cm9UWB1011LOSNLOS72510LOS113~5GHz10LOS11NLOSLOSNLOSBER-[1]AMStreet,LLukamaandDJEdwards.UseofVNAsforwidebandpropagationmeasurements.IEEProc.Commun,2001,148(6):411-415.[2]ABayram,AMAttiyaandASafaai-Jazi,Frequency-DomainMeasurementofIndoorUWBPropagation.AntennasandPropagationSocietyInternationalSymposium,2004.IEEE.1303–1306.[3]DTholl.Acomparisonof