Design of a re-entrant double-staggered ladder circuit for V-band coupled-cavity traveling-wave tubes

被引：4

作者：

Liu, Yang ^{[1
]}

Xu, Jin ^{[1
]}

Lai, Jian-Qiang ^{[1
]}

Xu, Xiong ^{[1
]}

Shen, Fei ^{[1
]}

Wei, Yan-Yu ^{[1
]}

Huang, Min-Zhi ^{[1
]}

Tang, Tao ^{[1
]}

Gong, Yu-Bin ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys Elect, Natl Key Lab Sci & Technol Vacuum Elect, Chengdu 610054, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 07期

关键词：

coupled-cavity traveling-wave tube; V band; re-entrant double-staggered ladder; slow-wave structure; TWT;

D O I：

10.1088/1674-1056/21/7/074202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The re-entrant double-staggered ladder slow-wave structure is employed in a high-power V-band coupled-cavity traveling-wave tube. This structure has a wide bandwidth, a moderate interaction impedance, and excellent thermal dissipation properties, as well as easy fabrication. A well-matched waveguide coupler is proposed for the structure. Combining the design of attenuators, a full-scale three-dimensional circuit model for the V-band coupled-cavity traveling-wave tube is constructed. The electromagnetic characteristics and the beam-wave interaction of this structure are investigated. The beam current is set to be 100 mA, and the cathode voltage is tuned from 16.8 kV to 15.8 kV. The calculation results show that this tube can produce a saturated average output power over 100 W with an instantaneous bandwidth greater than 1.25 GHz in the frequency ranging from 58 GHz to 62 GHz. The corresponding gain and electronic efficiency can reach over 32 dB and 6.5%, respectively.

引用

页数：7