RF and Microwave Power Amplifi...

RF and Microwave PowerHigh Frequency Design

RF POWER AMPLIFIERS

From January 2004 High Frequency Electronics Copyright Summit Technical Media, LLC

RF and Microwave Power Amplifier and Transmitter Technologies ― Part 5
By Frederick H. Raab, Peter Asbeck, Steve Cripps, Peter B. Kenington, Zoya B. Popovich, Nick Pothecary, John F. Sevic and Nathan O. Sokal The ever-increasing demands for more bandwidth, coupled with requirements for both high linearity and high efficiency create everincreasing challenges in the design of power amplifiers and transmitters. A single W-CDMA signal, for example, taxes the capabilities of a Kahn-technique transmitter with a conventional class-S modulator. More acute are the problems in base-station and satellite transmitters, where multiple carriers must be amplified simultaneously