A multi-mode envelope tracking power amplifier for software defined radio transmitters

Abstract

A multi-mode envelope tracking power amplifier is presented for software defined and cognitive radio solutions. A new 0.13um CMOS hysteretic-controlled hybrid switching supply modulator is developed for the mode dependent operation of the power supply modulator. Combined with 1.88GHz HBT class-AB/F PA operating with novel envelope shaping method, the… (More)

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6 Figures and Tables