标签: self-biased

AmonolithicHEMTregulatedself-biasedLNAVII-3AMonolithicHEMTRegulatedSelf-biasedLNAK.W.Kobayashi,R.Esfandiari,B.Nelson,K.Minot,W.Jones,M.Biendenbender,R.Lai,K.L.Tan,andJ.B.BerenzTRWElectronicandTechnologyDivisionOneSpaceParkRedondoBeach,CA90278ABSTRACTThisworkbenchmarksthefirstdemonstrationofamonolithicHEMTLNAdesignwhichincorporatesactiveregulatedself-bias.TheHEMTLNAbiascurrentcanbemaintainedtowithinf3%variationoveraprocessthresholdvariation(Vgs)off0.5Volt.Thebiascircuitryregulatesthebiascurrenttowithin1.5%overa100°Ctemperaturerange.Theamplifierhasanominalgainof10dBandanoisefigureof2.5dBovera1-10GHzbandwidth.Acrossseveralwaferswithathresholdvoltagespreadof0.5Volts,theactivebiasregulatedLNAmaintains……