基于ltcc技术的宽带功分器的小型化分析

《基于ltcc技术的宽带功分器的小型化分析》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、万方数据AbstractAbstractHighintegrationandminiaturizationbecomenewresearchdirectionofmicrowavecircuits,alongwiththedevelopmentofwirelesscommunicationtechnology.Traditionalpowerdividerisverylarge,whichaffectstheintegrationofthehighfrequencycircuit.LTCC(LowTemperatureC

2、o-firedCeramic)technologyprovidesprocessconditionsfordevicetothreedimensions.ThispaperisbasedonLTCCtechnologyandresearchhowtorealizeminiaturizationofWilkinsonpowerdivider.Traditionalpowerdividersalmostareone-layerstructure,butmainmethodofthispaperistomakepowerdiv

3、iderbecomeseveral-layerstructureandtoreduceitssize.Firstly,thispaperintroducesthefeatureanddifferenceofmicrostripline,coplanarwaveguide(CPW)andstripline.ThenfourWilkinsonpowerdividermodelsarebuiltusedthethreetransmissionlines,whichincludesonetraditionalpowerdivid

4、erbasedonmicrostrip,onetraditionalpowerdividerbasedonCPW,onedual-bandpowerdividerbasedonCPWandonedual-bandpowerdividerbasedonstripline.Thedual-bandpowerdividersarerealizedbyimpedanceconvertortoincreasebandwidth.WiththejointsimulationofADSandHFSS,themodelsarebuilt

5、andsimulatedandreceiveS-parametermeetingtherequirement.Twotraditionalpowerdividershavethecenterfrequencyof1.75GHzandthesizeof20mm×22mm×0.6mm.ThenitgetstheconclusionofthatCPWpowerdividerhasabetterfunction,bycontrastoftheirS-parameter.Thecenterfrequencypointsofthet

6、wodual-bandpowerdividersareboth1GHzand2.5GHz.TheCPWdual-bandpowerdividerhasasizeof30mm×30mm×0.6mm,andthestriplinepowerdividerhasasizeof9mm×10mm×4.5mm.Asthelastmodel,thestriplinedual-bandpowerdividerachievesdesignindex.Intheworkfrequencybandof0.8-1.2GHzand2.3-2.7G

7、Hz,insertionlossislessthan3.4dB.Returnlossofinputportislessthan-15dB.Returnlossofoutputportislessthan-20dB.Isolationdegreeislessthan-17dB.Sousingstriplinetorealizeseveral-layerstructurenotonlyreducedevicesizebutalsoimproveperformanceofdual-bandpowerdivider.Keywor

8、ds:PowerDividerTransmissionLineBroadbandLTCC万方数据万方数据目录目录第一章绪论..................................................................................................