The optimum high-frequency Class-F loading conditions are inferred, accounting for the effects of actual output device behavior, and deriving useful charts for an effective design. The important role of the biasing point selection is stressed, demonstrating that it must be different from the Class-B theoretical one to get the expected improvement. The IMD behavior of the Class-F amplifier is presented and the large-signal sweet-spot origin in the IMD output characteristics is discussed, together with possible strategies to improve intermodulation distortion performances. The control of the sweet spot position is demonstrated via proper terminating impedances, both at fundamental and harmonic frequencies and low frequencies.

Colantonio, P., García, J., Giannini, F., Gómez, C., Carvalho, N., Limiti, E., et al. (2005). High efficiency and high linearity power amplifier design. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 15(5), 453-468 [10.1002/mmce.20111].

High efficiency and high linearity power amplifier design

COLANTONIO, PAOLO;GIANNINI, FRANCO;LIMITI, ERNESTO;
2005-09-01

Abstract

The optimum high-frequency Class-F loading conditions are inferred, accounting for the effects of actual output device behavior, and deriving useful charts for an effective design. The important role of the biasing point selection is stressed, demonstrating that it must be different from the Class-B theoretical one to get the expected improvement. The IMD behavior of the Class-F amplifier is presented and the large-signal sweet-spot origin in the IMD output characteristics is discussed, together with possible strategies to improve intermodulation distortion performances. The control of the sweet spot position is demonstrated via proper terminating impedances, both at fundamental and harmonic frequencies and low frequencies.
set-2005
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-INF/01 - ELETTRONICA
English
Con Impact Factor ISI
microwave power amplifiers; high efficiency; high linearity; Class-F; intermodulation
Colantonio, P., García, J., Giannini, F., Gómez, C., Carvalho, N., Limiti, E., et al. (2005). High efficiency and high linearity power amplifier design. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 15(5), 453-468 [10.1002/mmce.20111].
Colantonio, P; García, J; Giannini, F; Gómez, C; Carvalho, N; Limiti, E; Pedro, J
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/15820
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