Title :
Broadbard and Broad Dynamic Range GaAs Dual-Gate MESFET Linearize for TWTA and SSPA Used in Satellite Transponder
Author :
Kumar, M. ; Whartenby, J.C. ; Wolkstein, H.J.
Abstract :
This paper presents a broadband predistortion technique using dual-gate FETs to linearize the Traveling Wave Tube Amplifiers (TWTA) and Solid State Power Amplifiers (SSPA) used in satellite transponders. The results for a linearized TWTA operating over 11.7-12.2 GHz and a linearized SSPA operating over 3.8-4.2 GHz are presented. The improvement in linearity has been achieved over a broad dynamic range of output power.
Keywords :
Broadband amplifiers; Dynamic range; FETs; Gallium arsenide; MESFETs; Power amplifiers; Predistortion; Satellites; Solid state circuits; Transponders;
Conference_Titel :
Microwave Symposium Digest, 1985 IEEE MTT-S International
Conference_Location :
St. Louis, MO, USA
DOI :
10.1109/MWSYM.1985.1132053
