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采用BFG480W晶体管的2APPLICATIONINFORMATION2.45GHzpoweramplifierwiththeBFG480WPhilipsSemiconductorsApplicationinformation2.45GHzpoweramplierwiththeBFG480WABSTRACTDescriptionoftheproductTheBFG480W,oneofthePhilipsdoublepolysiliconwidebandtransistorsoftheBFG400series.Thesetransistorsarecharacterisedbyatransitionfrequencyhigherthan20GHzatlowsupplyvoltages.ApplicationareaLowvoltagehighfrequencywirelessapplications.PresentedapplicationApoweramplifierfora2.45GHzWLAN.MainresultsAtafrequencyof2.45GHz,asupplyvoltageof3.0V,andacontrolvoltageof3.0V,theamplifierdeliversanoutputpowerof19dBmataninputpowerof8dBm,withapoweraddedefficiencyof38%.PHILIPSELECTRONICSN.V.1999Allrightsarereserved.R……