脊波導(dǎo)中主模及各高次模K-,c-的CAD計(jì)算.pdf

1、電子科技大學(xué)碩士學(xué)位論文脊波導(dǎo)中主模及各高次模K的CAD計(jì)算姓名：張曉春申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電磁場(chǎng)與微波技術(shù)指導(dǎo)教師：王錫良20030101皇三型墊查堂：堂婆量!圭塑墨魚壹盜塑墜竺竺竺鹽苧——AbstractRidgewaveguideisakindofguidewavesturcturethatoftenused，whichcanbeformedfromrectangularwaveguideComparetothenormalr

2、ectangularwaveguide，ridgewaveguidehasthecharacterofbroaderbandwidth，smallerdimension，lowerequivalentcharacteristicimpedance，etcBecauseofthesemerits，itisusedmoreandmorewidely，suchasbroadbandridgewaveguidefilter，broadbandd

3、irectcoupler，diplexer，frequencyconverter，phaseshifter，ridgewaveguideslotantennaarray，andSOonItismoredifficulttOanalyzeanddesignridgewaveguidecomponentsbecausetheboundaryconditionofridgewaveguidesisfarmorecomplexthanrecta

4、ngularonesKcofeachhighermodeinridgewaveguideisaveryimportantparameter，onceKcisobtained，thewavelength以，phaseconstantB，phasevelocityv口，waveguidewavelength，equivalentreactance，equivalentadmittanceandSOoncanbeobtainedsimplyT

5、henridgewaveguidedevicescanbedesignedbasedontheseparemetersInviewofthewidelyuseofridgewaveguides，theresearchofKcisveryimportantinpracticeAsmentionedinabove，theboundaryconditionofridgewaveguideisquitecomplex，SOt0solvethef

6、ieldequationsdirectlyisverytediousandcomplicateEquivalentcircuitmethodisusuallyusedbeforeThismethodhasapparentdefect，thatis，theignoranceofhigherordermodeeffect，whichcangreatlyaffectthecomputationalaccuracyIncasesthatrequ

7、irehighaccuracy，thismethodiSunusableThegoalofthispaperistoobtainamethodthatcancomputetheKcparameterofeachhighermoderapidlyandprecisely，andthenwritecorrespondingprogramsOnthebasisofforeignanddomesticreferences，aftercarefu