Novel Rectangular-Ring Vertex Double-Bar Slow Wave Structure for High-Power High-Efficiency Traveling-Wave Tubes

被引：3

作者：

Wei, Wanghe ^{[1
]}

Yu, Can ^{[1
]}

Wei, Yanyu ^{[2
]}

Tan, Mingtao ^{[3
]}

Lu, Zhongliang ^{[1
]}

Lu, Min ^{[1
]}

Wang, Wenxiang ^{[2
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Sci, Ganzhou 341000, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Natl Key Labo High Power Vacuum Elect, Chengdu 610054, Peoples R China

[3] Hunan Univ Arts & Sci, Sch Comp & Elect Engn, Changde 415000, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2021年 / 68卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Impedance; Power generation; Dispersion; Bars; Couplings; Couplers; Bandwidth; electron efficiency; gain; rectangular-ring vertex double-bar (RRVDB); traveling-wave tubes (TWTs); OSCILLATION SUPPRESSION; HELIX TWT; CIRCUITS;

D O I：

10.1109/TED.2021.3120693

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：

A novel rectangular-ring vertex double-bar (RRVDB) slow wave structure (SWS) is proposed to develop high-power high-efficiency traveling-wave tube (TWT). The remarkable advantages of this novel slow wave circuit are flatter dispersion and significantly larger interaction impedance in comparison with the circular ring double-bar (RDB) SWS. The particle-in-cell simulation of RRVDB TWT shows that, at beam voltage of 25.1 KV, beam current of 0.2 A, the maximum output power of 581.2 W, corresponding to differential small-signal gain of 0.366 dB/mm and electron efficiency of 11.57%, can be obtained for operating frequency of 34.5 GHz; the output power, gain, and electron efficiency of RRVDB TWT are considerably improved compared with RDB TWT. At the same time, size reduction and bandwidth extension are also achieved for the RRVDB TWT.

引用

页码：6512 / 6517

页数：6

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