Optimization Design of Helix Pitch for Efficiency Enhancement in the Helix Travelling Wave Tubes

作     者：段兆云 宫玉彬 吕明毅 魏彦玉 王文祥 

作者机构：Vacuum Electronics National Lab School of Physical Electronics University of Electronic Science and Technology of China Chengdu 610054 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60601007 and 60532010  Chinese Scholarship Council  Vacuum Electronics National Lab under Grant No 51440020205DZ0206  and Youth Science and Technology Foundation of UESTC under Grant No JX05018. The authors thank Professor LIU Pu-Kun at the Institute of Electronics of Chinese Academy of Sci- ences for his sincere help and Professor FENG Jin-Jun at Beijing Vacuum Electronics Research Institute for his patient instruction in both technique and English 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2008年第25卷第3期

页      码：934-937页

摘      要：The output section of a helix travelling wave tube usually contains a helix pitch taper for high rf electron efficiency. By keeping the rf field as synchronous as possible with the decelerating electron beam bunches, the rf field can extract much more energy from the beam, and thus the maximum electron efficiency can be realized. Recently, a global simulated annealing algorithm has been employed to design the helix pitch profile so as to improve the electron efficiency as much as possible. From the numerical results, it is concluded that the electron efficiency can be enhanced by about 4%-8%.

主 题 词：SIMULATION 

学科分类：07[理学] 0805[工学-能源动力学] 0704[理学-天文学类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1088/0256-307X/25/3/035

馆 藏 号：203142429...