Title :
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
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;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632516
