标签: predistortion

digitalpredistortionlinearizationmethodsforRFpoweramplifiers(Doctoraldissertation)TKKDissertations136Espoo2008DIGITALPREDISTORTIONLINEARIZATIONMETHODSFORRFPOWERAMPLIFIERSDoctoralDissertationIlariTeikariHelsinkiUniversityofTechnologyFacultyofElectronics,CommunicationsandAutomationDepartmentofMicroandNanosciencesTKKDissertations136Espoo2008DIGITALPREDISTORTIONLINEARIZATIONMETHODSFORRFPOWERAMPLIFIERSDoctoralDissertationIlariTeikariDissertationforthedegreeofDoctorofScienceinTechnologytobepresentedwithduepermissionoftheFacultyofElectronics,CommunicationsandAutomationforpublicexaminationanddebateinAuditoriumS4atHelsinkiUniversityofTechnology(Espoo,Finland)onthe26thofSeptember,2008,at12noon.HelsinkiUniversityofTechnologyFacultyofElectronics,Communication……

射频功率放大器预失真方面的很多论文（predistortio...,MTT20080518ADAPTIVEPREdistortion……

OptimumDesignofaPredistortionRFIEEETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUES,VOL.52,NO.2,FEBRUARY2004655OptimumDesignofaPredistortionRFPowerAmplifierforMulticarrierWCDMAApplicationsJeonghyeonCha,JaehyokYi,JangheonKim,andBummanKim,SeniorMember,IEEEAbstract―ThispaperprovidesadesignguideforoptimumdesignofanRFpoweramplifierwithapredistortionlinearizer.Foratwo-tonesignal,threeperformancedegradationfactors,higherorderterms,amplitude,andphasemismatchesareanalyzedquantitatively.TheresultsareimplementedtothedesignofoptimizedpredistortionpoweramplifierforaWCDMAsignalapplication.Fortheexperiments,a2.4-GHzclass-ABpoweramplifierisfabricatedusinganLDMOSFETwitha30……

implementingdigitalIFanddigitalpredistortionlinearizerfunctionswithprogammablelogicWhitePaperImplementingDigitalIF&DigitalPredistortionLinearizerFunctionswithProgrammableLogicIntroductionMobilecommunicationisquicklybecomingtheprimarymodeofcommunicationformostofthedevelopedworld.Basedon2.5Gtechnologies,mostcountriesnowhavedataservicesavailablethatwillbringaboutsignificantchangesinthewaypeopleexchangebusinessandpersonalinformation.Withtheincreasingpopularityofdataservices,greateramountsofbandwidtharerequired.Oneofthekeywaystoincreasethebandwidthistousediversitytechniques,whichhavebeenincorporatedinmostofthe3G(baystationmodem)standardsspecifications.However,witheachadditionalantennaanadditionaltransceiverisrequired,whichcansignificantlyincreasethesystemcostand……

AflexiblemethodofLUTindexingindigitalpredistortionlinearizationofRFpoweramplifiersAFLEXIBLEMETHODOFLUTINDEXINGINDIGITALPREDISTORTIONLINEARIZATIONOFRFPOWERAMPLIFIERSJavadYavandHassaniandMahmoudKamareiDepartmentofElectricalandComputerEngineeringUniversityofTehranABSTRACTAnewmethodoflookuptable(LUT)indexingforusingintheRFpoweramplifierlinearizationwithdigitalpredistortionispresented.Inthismethodthedensityoftableentriesinaspecifiedamplituderegion,isproportionaltotheaniplifiernonlinearityinthatregion.Thismethodissimple,flexible,andadaptive.SimulationresultsshowconsiderableimprovementofAdjacentChannelInterference(ACI)comparedtotheconventionalindexingwithamplitudemethod.1.41.21.-Smm0.81.INTRODUCTION0.6LinearizationofNonLinearRFPowerAmplifier(NLPA)is……