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1、ABSTRACTABSTRACTSincethemid-20thcentury,researchersfromdifferentcountrieshaveconductedaseriesofresearchesonmicrowaveandmillimeterwavepowercombiningtechnology.However,withtheincreasingofoperatingfrequency,thesizesandcapacitiesofsolid-statedeviceshavedecreasedcontinually,andhighfrequencymillimeterwave
2、testingoftheinstrumentsusuallywereusedasastandardrectangularwaveguideinterface.Soexploringthemillimeterwavehighfrequencypowerdivider/combinertechnologyandrectangularwaveguidetransitionstructurebecomesverynecessary.Asaplanarcircuitstructure,SIWhasarectangularwaveguidecharacteristicssimilartotheelectr
3、omagneticfield.Thisstructurehasbeenproposedsincethetwentiethcentury，ithavebeenattractedwideattentionofscholars.Inthispaper,weperformedatheoreticalanalysisofthesimilaritybetweenSIWandtherectangularwaveguide,andthesystematicstudyofthestructureofthesubstrateintegratedwaveguideeffectonitsperformance.Att
4、hesametimeweanalyzetheequivalentrelationshipbetweenSIWandrectangularwaveguide.WewillapplySIWtothepowerdivider/combinertechnology,weproposeamethodbasedonSIWlongitudinalgroovingpowerdivider/combinerscheme,thestructurehasgoodamplitudeandphasecharacteristics.Accordingtotheactualtestingenvironment,wedesi
5、gnarectangularwaveguides-SIWtransitionstructure.Weusetheantipodalfin-linetechnologyforaW-bandSIW-RectangularWaveguidetransition,thistransitionhaveaworkbandof86.4-106.1GHz,itsreturnlossismorethan15dB,theinsertionlossislessthan-2dB,thistransitionhasagoodtestperformance.Finally,wecombinetheantipodalfin
6、-linetechnologyintothelongitudinalslottedoftheSIWpowerdividing/combiningsystems,theback-to-backstructureofthefour-waypowerdivider/combinerworksinthebandof92.8-93.8GHzwithinthereturnlossismorethan10dB,andtheinsertionlossislessthan-3.9dB,thesetestresultsaremoredesirable.Ithasalsolaidagoodfoundationfor
7、usingSIWtothemillimeterwavespatialpowercombiningtechnology.IIABSTRACTKeywords:SubstrateIntegratedWaveguide,Longitudinalslotted,powerdivider/combiner,antipodalfin-linetransitionIII目录目录第一章绪论............
