Title :
Efficiency improvement of TWTs by surface modification of multistage depressed collectors
Author :
Ding, Ming Q. ; Qu, Bo ; Bai, Guodong ; Xing, Junyi ; Liang, Xiaofeng ; Cai, Shaolun ; Feng, Jinjun
Author_Institution :
Vacuum Electron. Nat. Lab., Beijing Vacuum Electron. Res. Inst., Beijing, China
Abstract :
A study of efficiency of Ka-band TWTs with multistage depressed collectors (MDCs) ion-treated and untreated, respectively is reported. It was shown that efficiency of the TWT with ion-treated MDCs improved by as high as 7%, in comparison to that of one with untreated MDCs.
Keywords :
travelling wave tubes; Ka-band TWT; ion-treated MDC; multistage depressed collectors; surface modification; travelling wave tubes; Electrodes; Electron emission; Estimation; Geometry; Ion sources; Laboratories; Shape; TWT efficiency; ion treatment; secondary electron emission;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5747036
