This paper presents a novel technique for power amplifier linearization in digital microwave radio systems. The proposed technique is based on the use of a predistortion circuit, whose AM/AM and AM/PM responses are separately implemented as polynomial approximations of the respective responses of the ideal linearizer. The proposed scheme is shown to attain superior performance in comparison with other well-known predistortion structures, such as those based on the cancellation of third or fifth order distortion, with no substantial aggravation in implementation complexity.

RF power amplifier linearization through amplitude and phase predistortion

D'ANDREA, NUNZIO ALDO
Co-primo
Writing – Review & Editing
;
LOTTICI, VINCENZO
Co-primo
Writing – Review & Editing
;
REGGIANNINI, RUGGERO
Co-primo
Writing – Review & Editing
1996

Abstract

This paper presents a novel technique for power amplifier linearization in digital microwave radio systems. The proposed technique is based on the use of a predistortion circuit, whose AM/AM and AM/PM responses are separately implemented as polynomial approximations of the respective responses of the ideal linearizer. The proposed scheme is shown to attain superior performance in comparison with other well-known predistortion structures, such as those based on the cancellation of third or fifth order distortion, with no substantial aggravation in implementation complexity.
D'Andrea, NUNZIO ALDO; Lottici, Vincenzo; Reggiannini, Ruggero
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/254144
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