标签: predistorter

功放预失真技术,RF_Predistorter……

PredistorteronPASeminar:GainWithoutPainNovember2000RFPredistortionofPowerAmplifiersShawnStapletonAgilentTechnologies1400FountaingroveParkwaySantaRosa,CA95403AbstractWiththeadventoflinearmodulationmethods,linearizationofpoweramplifiershasbecomeanimportanttechnology.Theadaptiveworkfunctionpredistorterisanapproachtooptimizingout-of-bandintermodulationperformance.Thistechniquecanadapttochangesinthepoweramplifier’scharacteristics,includingeffectssuchastemperaturechanges,channelswitching,powersupplyvariation,andtransistordegradation.ThetechniquecanalsohandlelargerbandwidthsthancurrentDSP-baseddigitalpredistorters.BiographyDr.ShawnP.Stapletonhas17yearsofexperienceinthedesignofRFandmicrowavecircuitsands……