Title :
An improved optimization method for helix pitch profile in TWTs
Author :
YuLu Hu ; Zhonghai Yang ; Jianqing Li ; XiaoFang Zhu ; Bin Li
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
An Improved optimization method for helix pitch profile in traveling wave tubes has been described in this paper. Regardless the reflection waves effect, the sequence characteristic of the beam-wave interaction calculation and the power saturation index such as field relative phase are integral to the optimization method. By Setting several backup point and using the field relative phase, the beam-wave interaction calculation for optimization have been cut down. The total optimization time can reduce to 50% approximately. Also the optimal result can be easily achieved by this method.
Keywords :
optimisation; travelling wave tubes; Improved optimization method; backup point; beam-wave interaction calculation; field relative phase; helix pitch profile; power saturation index; reflection waves effect; sequence characteristic; traveling wave tubes; Educational institutions; Electron tubes; Heuristic algorithms; Indexes; Optimization methods; Reflection; BWIS; Optimization Method; TWT; relative phase; sequence calculation;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857700
