Comparison of different methods of suppression of self-excitation broadband TWT on a backward wave in view of a beam expansion

Author

Danilov, Andrey B. ; Il´ina, E.M. ; Rafalovich, Alexander D.

Author_Institution

Fed. State Unitary Enterprise NPP Almaz, Saratov, Russia

fYear

2012

fDate

24-26 April 2012

Firstpage

269

Lastpage

270

Abstract

The start currents of self-excitation of traveling- wave tube (TWT) on a backward wave in view of an electron beam expansion in a dynamic mode are calculated. Efficiencies of self-excitation suppression by jump of pitch of a TWT slow-wave structure (SWS) with normal dispersion (ND) along all length, by jump of pitch and dispersion steepness in TWT with abnormal dispersion (AD) in output section, by jump of beam channel diameter and by jump of field phase in both types of devices are compared.

Keywords

slow wave structures; AD; ND; TWT SWS; TWT slow-wave structure; abnormal dispersion; backward wave; beam channel diameter; beam expansion; dispersion steepness; dynamic mode; electron beam expansion; normal dispersion; pitch steepness; self-excitation broadband TWT suppression; self-excitation broadband traveling-wave tube suppression; Dispersion; Educational institutions; Electron tubes; Materials; Microwave communication; Neodymium; Publishing; TWT; a backward wave; a field phase; a start current; channel diameter; dispersion; jumps of a pitch SWS;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4673-0188-6

Electronic_ISBN

978-1-4673-0187-9

Type

conf

DOI

10.1109/IVEC.2012.6262158

Filename

6262158