Modeling of A Converging Hollow Beam Electron Optic System for a Ka-Band EIK

被引：0

作者：

Ma, Tongli ^{[1
,2
]}

Zhao, Ding ^{[1
]}

Zhang, Zhaochuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Elect, Key Lab High Power Microwave Sources & Technol, Beijing 100407, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100408, Peoples R China

来源：

2019 INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2019年

关键词：

Hollow beam; annular gun; electron optic system; high compression ratio; Ka-band;

D O I：

10.1109/ivec.2019.8744963

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the design of a 25 kV, 2.5 A hollow beam electron gun for a Ka-band extended interaction klystron has been analyzed in detail. The hollow beam electron gun has two control focus electrodes, which can switch on/off the device quickly. The influence about the geometry parameters on perveance, beam waist, beam throw and beam laminearity are studied. The simulation result shows a hollow beam with 8% outer envelope ripple amplitude, 100 transmission ratio, 122.8 area compression ratio can propagates 49.4mm (from the cathode to the entrance of collector) with good laminarity under a uniform magnetic flux density of 0.7 T.

引用

页数：2

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