Title :
Design and Performance of Microwave Predistortion Networks using Digital Circuits
Author :
Horn, M. ; Egger, A.
Author_Institution :
Institut fÿr Hochfrequenztechnik, Universitÿt Stuttgart, Pfaffenwaldring 47, D-7000 Stuttgart 80, F. R. of Germany
Abstract :
The paper deals with a new method for realizing predistortion networks which can compensate with high accuracy for nonlinear amplitude and phase distortions caused by TWT and GaAs FET microwave power amplifiers. The method is based on a digital generation of the nominal nonlinear predistortion characteristics. After discussing the nonlinear behaviour of microwave power amplifiers and the requirements on predistortion networks, the method and a realized predistortion network are described. Measurement results show its compensation capabilities.
Keywords :
Character generation; Digital circuits; Gallium arsenide; High power amplifiers; High power microwave generation; Microwave FETs; Microwave amplifiers; Microwave theory and techniques; Phase distortion; Predistortion;
Conference_Titel :
Microwave Conference, 1984. 14th European
Conference_Location :
Liege, Belgium
DOI :
10.1109/EUMA.1984.333376
