Computer simulation of intermodulation distortion in traveling wave tube amplifiers

Author

Carter, Richard G. ; Bösch, Wolfgang ; Srivastava, Vishnu ; Gatti, Giuliano

Author_Institution

Dept. of Eng., Lancaster Univ., UK

Volume

48

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

178

Lastpage

180

Abstract

The intermodulation performance of a helix TWT was computed using a large-signal disc model with two, three and eight correlated carriers and also using the program IMAL which models a generalized nonlinearity described by its single-carrier transfer characteristics. The results obtained by both methods showed good agreement. The intermodulation performance of a TWT for both correlated and uncorrelated carriers can therefore be predicted from its single-carrier transfer characteristics if they do not change significantly over the frequency range of interest

Keywords

digital simulation; electronic engineering computing; intermodulation distortion; travelling wave amplifiers; 11.4 to 12 GHz; IMAL program; computer simulation; correlated carriers; generalized nonlinearity modeling; helix TWT; intermodulation distortion; large-signal disc model; single carrier transfer characteristics; traveling wave tube amplifiers; uncorrelated carriers; Artificial satellites; Broadband amplifiers; Computer simulation; Intermodulation distortion; Phase modulation; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Space heating;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.892188

Filename

892188