RF and Microwave Power Amplifier and Transmitter Technologies — Part 4

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  • Author: Frederick H. Raab, Peter Asbeck, Steve Cripps, Peter B. Kenington, Zoya B. Popovich, Nick Pothecary, John F. Sevic and Nathan O. Sokal
Linearization tech-niques are incorpo-rated into power amplifiers and transmit-ters for the dual purposes of improving linearity and for allowing opera-tion with less back-off and therefore higher effi-ciency. This article pro-vides a summary of the three main families of techniques have been developed: Feedback, feedforward, and predistortion.