High-Efficiency Doherty Power Amplifiers


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High-Efficiency Doherty Power Amplifiers
10105041010601 High-Efficiency Doherty Power AmplifiersThis chapter describes the historical aspect of the Doherty approach to the power amplifier design and modern trends in Doherty amplifier design techniques using multistage and asymmetric multiway architectures. To increase efficiency over the power-backoff range, the switchmode Class-E, conventional Class-F, or inverse Class-F operation mode by controlling the second and third harmonics can be used in the load network. The Doherty amplifier with a series connected load and inverted Doherty architectures are also described and discussed. Finally, examples of the lumped Doherty amplifier implemented in m…
Citation
Andrei Grebennikov, Ph.D.: RF and Microwave Power Amplifier Design, Second Edition. High-Efficiency Doherty Power Amplifiers, Chapter (McGraw-Hill Professional, 2015), AccessEngineering Export