文档介绍：摘要关键词:准光模式变换器、测试、TE62模式激励器、虚拟仪器ABSTRACTAtpresentalmost70%’opficalmodeconverterforhorizontaloutput,whilethedomesticgyro竹on’pactsystemslikein-vehiclesystemneedallexternalquasi-opticalmodeconvertertoachievethemodeconversionfromhi【ghorderwaveguidemodetoquasi—’snecessarytodoresearchonthetestingtechnologyofquasi--opticalmodeconvertertestingtechnologyfocusontwoparts,oneistodesignhigher-orderwaveguidemodeexciterstosimulatethegyro臼on’;theotheristhedesignoffiatfielddistributiontestsystem,uratemeasurementoftheexciter'soutputmodeandtheamplitude-phasedistributionofquasi—--opticalmodeexciterwiththemethodofquasi-optiealconversionhashighpurityoutputmode,butitsdisadvantageisIlalTOWbandwidth,,,a3mmwavebandmodeexciterofcircularwaveguideTE62isdesigned,whichismodeconverterofrectangularwaveguideTEto—circularwaveguideTE62,,theresultisgot,%%atthecenterfrequencvof94GHz,andthemodepurityofTE62ishighel"%%,pactstructuresomebandwidthandhi【ghmodeconversion,