A 28-dBm pHEMT Power Amplifier Using Voltage Combiner for K-Band Applications


A K-band power amplifier was implemented using a 0.25-mum pHEMT process. A tournament-shaped voltage combiner that combines power by combining voltage was used in the output matching network. The voltage combining method alleviates the drain voltage swing requirement of the power transistor, whose junction breakdown voltage becomes quite low especially for… (More)


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