Title :
A Compact Wideband Ku-Band Linearizer for Satellite Transmit Amplifiers
Author :
Khilla, A.M. ; Schäufler, J. ; Leucht, D ; Born, A.
Abstract :
The results of an ESA program to develop and breadboard a space-qualifiable solid-state linearizer, including control circuitry, for space use are presented. Not only the microwave performance specifications but also producibility, reliability, and flexibility with respect to amplifier type are taken into account in the linearizer design. The linearizer is capable of linearizing travelling wave tube amplifiers (TWTAs), with different AM/AM and AM/PM characteristics covering any 250 MHz band within the frequency range 10.7 GHz - 12.2 GHz, using telecommand signals from Earth.
Keywords :
Artificial satellites; Attenuators; Bandwidth; Bridge circuits; Broadband amplifiers; Nonlinear distortion; Power amplifiers; Power generation; Predistortion; Transponders;
Conference_Titel :
Microwave Conference, 1989. 19th European
Conference_Location :
London, UK
DOI :
10.1109/EUMA.1989.334051
