A millimeter-wave predistortion linearizer for traveling wave tube amplifiers

Author

Zhou, Rui ; Xie, Xiaoqiang ; Yan, Bo ; Li, Shaolan

Author_Institution

Fundamental Sci. on EHF Lab., Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China

Volume

1

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

3

Abstract

In this paper, a millimeter-wave predistortion linearizer to satisfy linearization requirements of the traveling wave tube amplifiers (TWTAs) is proposed. By controlling the DC bias of the Schottky diode, the linearizer is capable of providing different combinations of the amplitude and phase characteristics for the TWTAs. The simulation results show 7.2dB gain compensation and 42° phase compensation can be achieved for the TWTAs with the linearizer. Good reflection characteristic of the linearizer can be obtained and any additional matching element is not required.

Keywords

Schottky diodes; compensation; millimetre wave amplifiers; travelling wave amplifiers; DC bias control; Schottky diode; gain 7.2 dB; linearization requirements; matching element; millimeter-wave predistortion linearizer; phase compensation; traveling wave tube amplifiers; Admittance; Microstrip; Millimeter wave communication; Predistortion; Resistance; Schottky diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6229945

Filename

6229945