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Título del libro: Proceedings Of The 2017 Ieee Topical Conference On Power Amplifiers For Wireless And Radio Applications, Pawr 2017
Título del capítulo: Direct design of Doherty and Chireix PAs using a nonlinear embedding device model

Autores UNAM:
FRANCISCO JAVIER MARTINEZ RODRIGUEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2017
Palabras clave:

Design; Power amplifiers; Class J; Device modeling; Doherty; Input and outputs; Mode of operations; Nonlinear embedding; Power efficiency; Waveform engineerings; Doherty amplifiers


Resumen:

Waveform engineering is commonly used to optimize the power efficiency, linearity and output power of power amplifiers (PA). In this search for the optimal waveforms, PA designers have become interested in knowing the internal mode of operation of the device at the current-source reference-planes. However given the huge search space for the input and output multi-harmonic terminations required to find the desired internal waveforms, it is much desirable to use a nonlinear embedding device model to readily obtain the required multi-harmonic voltage and current waveforms at the transistor measurement (package or extrinsic) reference-planes in order to realize the desired mode of operation at the current-source reference-planes. In this paper, examples of such designs for Doherty, Chireix and class-J amplifiers will be presented to demonstrate how this promising technique streamlines the design of such PAs. © 2017 IEEE.


Entidades citadas de la UNAM: