NDLI: Behavioral modeling of narrowband microwave power amplifiers with applications in simulating spectral regrowth

Content Provider	IEEE Xplore Digital Library
Author	Leke, A. Kenney, J.S.
Copyright Year	1996
Description	Author affiliation: Inf. Syst. Lab., Stanford Univ., CA, USA (Leke, A.)
Abstract	A new behavioral model for narrowband microwave power amplifiers is proposed. Analytic expressions for the gain compression (AM-AM) and amplitude dependent phase distortion (AM-PM) of a nonlinear amplifier are derived from a third-order Volterra series model. The cases of a single-tone and of a two-tone signal are explored. We show that the gain compression characteristics of nonlinear amplifiers depend on the amplitude modulation characteristics of the signal. Furthermore, we show that the time-averaged phase deviation is independent of the modulation envelope. This justifies the new model proposed for obtaining the envelope transfer characteristics by applying the Bessel-Fourier technique only to the AM-AM characteristic. This model is verified by comparing spectral regrowth simulations of digitally-modulated signals to those measured in a 1.9 GHz GaAs FET power amplifier.
Starting Page	1385
Ending Page	1388
File Size	301978
Page Count	4
File Format	PDF
ISBN	0780332466
ISSN	0149645X
DOI	10.1109/MWSYM.1996.512194
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Narrowband Microwave amplifiers Power amplifiers Power system modeling Computational modeling Predictive models Nonlinear distortion Power measurement Phase distortion Circuit simulation
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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