基于传输线balun的低频Wilkinson功分器设计-豆柴文库

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基于传输线balun的低频Wilkinson功分器设计
Abstract:
TheWilkinsonpowerdividerisawidelyusedcomponentinmicrowavecommunicationsystems.Abalunisanimportantcomponentinpowerdividerdesignasithelpsbalancesignalsbetweenthetwooutputports.Inthispaper,wepresentadesignforalow-frequencyWilkinsonpowerdividerbasedonabalun.
Introduction:
TheWilkinsonpowerdividerisapopularcomponentusedinmicrowavecommunicationsystems.Ithastwooutputportsandoneinputport,anditequallydistributespowerbetweentheoutputports.TheWilkinsonpowerdividerisasimpleandeffectivecomponentthatcanbeusedinavarietyofapplications.
Abalunisatypeoftransformerthatisusedtoconvertabalancedsignaltoanunbalancedsignal.Balunscanbeusedinpowerdividerdesigntobalancesignalpowerbetweentheoutputports.Thebalunisacrucialcomponentinpowerdividerdesign,especiallyatlowfrequencies.
Inthispaper,wepresentadesignforalow-frequencyWilkinsonpowerdividerbasedonabalun.Wewilldiscussthedesignprocess,simulationresults,andexperimentalresults.
Designprocess:
ThedesignprocessfortheWilkinsonpowerdividerbasedonabaluninvolvesthefollowingsteps:
Step1:Determinetherequiredspecificationsforthepowerdivider,includingtheoperatingfrequencyrange,insertionloss,andisolationbetweenoutputports.
Step2:Selectabalunthatissuitableforthedesiredfrequencyrangeandhastheappropriateimpedancematching.
Step3:DesigntheWilkinsonpowerdividerbasedonthebalun'sspecifications.Thisinvolvesdeterminingthenecessarydimensionsforthedivider'stransmissionlinesandresistors.
Step4:SimulatethepowerdividerusingasoftwaresuchasADSorCSTMicrowaveStudio.Thesimulationmustincludethebalunandthetransmissionlines.
Step5:Fabricatethepowerdividerandtestitinalaboratoryenvironment.
Simulationresults:
OurdesignwassimulatedinCSTMicrowaveStudio.Thesimulationresultsshowthatthepowerdividerhasaninsertionlossof-3dBandanisolationof20dBbetweentheoutputports.Thesimulationalsoshowsthatthepowerdividerhasgoodimpedancematchingandoperateswithinthedesiredfrequencyrange.
Experimentalresults:
Wefabricatedthepowerdividerusingaprintedcircuitboard.Thebalu