Title :
A design of Ku-band linearizer for space TWT
Author :
Wei-bo, Huang ; Bin, Zhou ; Zhao, Liu ; Pei-yun, Fan
Author_Institution :
Acad. of Space Electron. Inf. Technol., Xi´´an, China
Abstract :
Predistortion linearization is a very effective technique for improving the linearity and efficiency of traveling wave tube (TWT) amplifiers. A novel broadband linearizer is presented in this paper, which has been developed at space satellite system for Ku band. The nonlinear characteristics of linearizer can be adjusted to linearize deferent TWTA from 12.25GHz to 12.75GHz. The linearizer is capable of providing up to 5 dB gain compensation and 45 degree phase compensation. The great improvement of C/3rd IMD of TWTA could be obtained by using this linearizer.
Keywords :
intermodulation distortion; linearisation techniques; travelling wave amplifiers; Ku-band linearizer; frequency 12.25 GHz to 12.75 GHz; gain compensation; intermodulation distortion; phase compensation; predistortion linearization; space TWT; space satellite system; traveling wave tube amplifiers; Europe; Information technology; Microwave theory and techniques; Predistortion; Radio frequency; Space exploration; C/3rd IMD; Predistortion; TWTA; linearizer;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6066526
