The gain computation for the traveling wave tube with ridge-loaded helical groove

被引：12

作者：

Wei, YY ^{[1
]}

Wang, WX ^{[1
]}

Gong, YB ^{[1
]}

Zhou, P ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Inst High Energy Elect, Natl Key Lab High Power Vacuum Elect, Chengdu 610054, Peoples R China

来源：

ACTA PHYSICA SINICA | 2000年 / 49卷 / 05期

关键词：

D O I：

10.7498/aps.49.949

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ridge-loaded helical traveling wave tube (TWT) is a new kind of high power millimeter wave device. The "hot" dispersion equation of this circuit loaded with an electronic beam is presented in this paper, and the Downhill method is used to solve the transcendental equation. The physical dimensions of a 47.4 GHz ridge-loaded helical groove slow wave structure (SWS) with a 20 kV electron beam are given and the investigations of the effect of the ridge dimensions and electron beam parameters on the small signal gain are carried out. It is indicated from the calculation results that this type of structure is suitable for use as s SWS of high power, high gain but narrow passband millimeter TWT, of which the 3dB gain bandwidth is 3.4%. In order to increase the bandwidth, the reduction of the ridge gap or the increase of the electron beam current in an allowable range may be useful. The presented analysis will be a guide to the design of, this kind of traveling wave tube.

引用

页码：949 / 953

页数：5

共 7 条

[1] ON DOWNHILL METHOD [J].