A digital approach to efficient RF power amplifier linearization

Author

D´Andrea, A.N. ; Lottici, Vincenzo ; Reggiannini, Ruggero

Author_Institution

Dipt. di Ingegneria della Inf., Pisa Univ., Italy

Volume

1

fYear

1997

Firstpage

77

Abstract

This paper presents a digital algorithm for the linearization of microwave power amplifiers, based on the amplitude and phase predistortion technique. An adaptive version of the algorithm, capable to track possible variations in the amplifier parameters, is also discussed. The new algorithm is thoroughly assessed and compared to a digital predistortion scheme proposed in the literature. Our predistorter proves considerably faster than the other scheme, though approximately exhibiting the same accuracy

Keywords

digital radio; electric distortion; linearisation techniques; microwave power amplifiers; radio equipment; tracking; accuracy; adaptive algorithm; amplifier parameters; amplitude predistortion; digital approach; efficient RF power amplifier linearization; microwave power amplifiers; phase predistortion; tracking; Degradation; Linearization techniques; Microwave amplifiers; Microwave theory and techniques; Modulation; Power amplifiers; Predistortion; Radio frequency; Radiofrequency amplifiers; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.632516

Filename

632516