资源描述：
《LTCC带通滤波器外文翻译》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、来源：MicrowaveConference,2008.EuMc2008.38thEuropeanBandpassFiltersforKa-BandSatelliteCommunicationApplicationsBasedonLTCCAbstract----ThedesignoftwocompactbandpassfiltersforKa-bandsatellitecommunicationapplications(downlink17–22GHz)ispresented.Bothfilte
2、rsaredesignedwithadditionaltransmissionzerosatfinitefrequenciesinordertoimprovetheout-of-bandselectivity.Thefiltershavebeenrealisedaslow-costLTCCmodulesandthescatteringparametershavebeenmeasuredwithon-waferprobing.I.INTRODUCTIONModernmultimediasatell
3、itesaregettingmorecomplexwithtransponderconnectivityrequirements,multiplecoveragebeams,etcetera.Hence,satelliteoperatorsincreasinglydemandflexibilityinfunction,efficientsignalroutingandsignalprocessing.Therefore,futureapplicationsinmultimediasatellit
4、ecommunicationsrequireinnovativecomponentswithhighRF-performanceand,atthesametime,withlowweight,smallsize,andhighreliability.Advancedintegrationandpackagingtechnologies,suchaslowtemperatureco-firedceramics(LTCC),combinedifferentdesigntechniqueswithlo
5、wcostoffabrication,smallsizeandmultiplefunctionality.LTCCtechnologyprovidesmodular,hybrid-integratedsystemswithahighdegreeofminiaturizationofmicrowavepayloadequipmentand,hence,flexibilityforadaptationtovaryingapplications.Itisoneofthereasons,whyLTCCb
6、ecameverypopular,notonlyforlowfrequencydesigns,butforhighfrequenciesinthemicrowaveandevenmillimeter-waverangesaswell.ThispaperfocusesonbandpassfiltersforKa-banddownlinkfrequenciesasimportantpartsofmultimediasatellitesignalchains,whicharebasedonLTCCmu
7、ltilayertechnologyandcanbecombinedwithotherKa-bandmicrowaveLTCCmodulespresentlyunderdevelopment.Thetwofilterspresentedheredisplayhighstop-bandisolationforanefficientsuppressionoftheKa-banduplinkfrequencies,andlowinsertionloss.Theyaredevelopedforsepar
8、atingchannelgroupswithtotalbandwidthsof500MHzupto1GHzinthefrequencyrangeof17–22GHz.Fordemonstrationpurposes,thesefiltershavebeendevelopedforacentrefrequencyoff0=19.5GHz.Additionalefforthasbeenspentininvestigatingtheinfluenceofgroundinganddifferentcon
