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

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

3478

Lastpage

3481

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066526

Filename

6066526