标签: pcs-cdma

AmonolithicSiPCS-CDMApoweramplifierwithanimpedance-controllablebiasingschemeTUE3F-4AMONOLITHICSIPCS-CDMAPOWERAMPLIFIERWITHANIMPEDANCE-CONTROLLABLEBIASINGSCHEMESifenLuoandTirdadSowlatiPhilipsResearch,BriarcliffManor,NewYork10530,USAAbstract-ThispaperforthefirsttimepresentsamonolithicSiPCS-CDMApoweramplifier(PA)capableofdelivering28.2dBmoutputpowerwith30%power-addedefficiency(PAE)and-45dBcadjacent-channel-powerratio(ACPR)at1.9GHzand3.6Vsupplyvoltage.ThePAimplementedina30GHzBiCMOSprocessincorporatesanovelimpedance-controllablebiasingschemetocontrolclassofoperationandbiasimpedanceoftheoutputstage.controllablebiasingschemeforthePAanditsadvantagesovertheconventionalonearepresentedinSection111.MeasuredresultsofthePAwiththeimpedancecontrollablebiasingscheme……