Title :
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
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;
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
DOI :
10.1109/IVEC.2012.6262158
