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时间: 2020-1-13 16:16
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improveMMICPowerAmpDesignAPPLICATIONNOTEUSINGLOADPULLANALYSISANDDEVICEMODELVALIDATIONTOIMPROVEMMICPOWERAMPLIFIERDESIGNMETHODOLOGIESThisarticledescribesamethodologyforthedesignofa2GHzmonolithicmicrowaveintegratedcircuit(MMIC)poweramplifier(PA)usingaheterojunctionbipolartransistor(HBT)process.Itisbasedontheuseofmodernsoftwaretoolsandadvancedloadpullsimulationstovalidatethedevicemodelextensivelybeforesimulatingtheamplifiercircuitasawhole.Whenthisapproachisused,thematchingnetworksandfinaldesignrequirevirtuallynotuningordesigniterations.Thereiscertainlynoshortageofinformationaboutdesigningpoweramplifiersthesedays,andseveralbooksaddressthesubjectquiteadmirably.1-6However,aswellasthesebookscoverthet……