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1、ABSTRACTABSTRACTTheSubstrateIntegratedWaveguide(SIW)techniquewhichcanbeintegratedinthedielectricsubstratewithlowinsert-lossandlowradiation-lossisanovelguided-wavestructuredevelopedinrecentyears.SincethepropagationcharacterinSIWissimilartothatinaconventionalrecta
2、ngularwaveguide,themillimeterwaveandsubmillimeterwaveSIWcomponentsandsub-systemstakealotofmeritssuchashigh-Q,highpowercapabilityandeasyintegrationetc.Therefore,SIWcanbeusedtoachievesomemetaldevicessuchassplitters,filters,antennasasthewaveguide.Additionally,dueto
3、SIWcomponentsaretotallyconstructedbymetallic-viasinthedielectricsubstrate,thesecomponentscanbefabricatedusingprinted-circuits-board(PCB),lowtemperaturecofiresceramic(LTCC)processoreventhin-filmprocessandintegratedwithotherplanarmicrowavecircuitsandchipswithoutan
4、yexpensiveassembling.Comparedtothefabricationcostsoftraditionalwaveguidemicrowaveandmillimeter-wavecomponents,thecostsofSIWcomponentswhichdonotneedtediouspost-fabricationtuningareverylow,andtheyareverysuitableforthedesigningandproductionofmicrowaveandmillimeter-
5、waveintegratedcircuits.ThisarticledesignsaTE10-TE01modeconverterbasingonthesubstrateintegratedwaveguidetechnology.Thisarticleisdividedintothefollowingfourparts:First,designanddevelopmentofanewtypeofwaveguidetotheantipodalfinlineSIWconverter,thisconverterintheKa-
6、bandandW-bandhavegoodsimulationresults,andcanachievetheelectricfielddirectiontransitionfromtherectangularwaveguidetoSIW;Second,basingonthethewaveguidemodeconverterdesigntheoryandpractice,wehavedesignedanewtypeofSIWrectangularwaveguideTE10-TE01circularwaveguidemo
7、deconverter,throughthenewdesignlineconvertersweabtainagoodresultofelectricfielddirectionmodeconverter;third,withanalysisbasingontheadvantagesanddisadvantagesoftheY-typeandT-typepowersplitter,wedesignanddevelopanewtypeof4-waypowerdividerforthispaper.Between90GHz~
8、100GHzband,returnlossisbetterthan15dB,insertionlossislessthan7.42dB,isolationII万方数据ABSTRACTbetweentheoutputportsisbetween13.4dB~15.4dB;Fourth,weintegrateantipodalfinl
