TM模式陶瓷介質(zhì)雙工器的研究與實(shí)現(xiàn).pdf

1、電子科技大學(xué)碩士學(xué)位論文TM模式陶瓷介質(zhì)雙工器的研究與實(shí)現(xiàn)姓名：劉曉靜申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電路與系統(tǒng)指導(dǎo)教師：張玉興20100501ABSTRACTSincethe1990s，thedemandforhighperformancemicrowavefiltersanddiplexersforbothhandsetandbasestationapplicationshassignificantlyincreasedfortherapi

2、dexpansionofmobilecommunicationsAttheSalTletime，therequirementfortheperformanceoffiltersanddiplexersisgettingstricternotonlyOilexcellentfiequcncyselectivitybutalsoOiltheirsizeweighttemperaturecharacteristicsandCOStDuetOa

3、majorbreakthroughinceramicmaterialtechnologyinthe1980s，peoplegotint淵tindielectricresonatorsanddielectricresonatorsfilterswhichcouldbeappliedinawidevarietyofmicrowavecircuitconfigurationsandmeirsubsystemsSoanumberofnewhig

4、hdielectricconstantmaterials、)l，itllhi曲qualityfactorandlowtemperaturecoefficientsweredevelopedEspeciallytheceramicdielectricduplexersappliedtotheRFfrontendofbasestationhaveobtainedmoreattentionfortheirhigherQvalue，lowert

5、emperaturecoefficientandsmilervolumewhichisgraduallyappliedtoactualprojectsThebasicconceptsoffilterdesignandceramicresonatortheoriesareintroducedinthispaperandaceramicduplexerwhichworksintheTMmodeandCanbeusedintheWCDMAsy

6、stemiSdesignedWiththecombinationoftheoryandsimulation，thephysicaldimensionoftheduplexeralegivenandtherealproductisproducedAftertuningandtestingtheperformanceoftheduplexerCansatisfythedesignspecificationandhasobviousadvan