Design of a High-Power V-Band Klystron With Internal Coupling Multigap Cavity

被引：3

作者：

Xie, Bingchuan ^{[1
,2
]}

Zhang, Rui ^{[3
]}

Wang, Yong ^{[1
,2
]}

Wang, Huanhuan ^{[4
]}

Zhang, Xu ^{[1
,2
]}

Chao, Quangui ^{[1
,2
]}

Liu, Kegang ^{[1
,2
]}

Geng, Zhihui ^{[3
]}

Liao, Yunfeng ^{[3
]}

Yang, Xiudong ^{[3
]}

机构：

[1] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100094, Peoples R China

[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Sci & Technol High Power Microwave Source, Beijing 100094, Peoples R China

[4] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Sch Optoelect, Beijing 100049, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2022年 / 69卷 / 05期

关键词：

Couplings; Klystrons; Resonators; Radio frequency; Integrated circuit modeling; Bandwidth; Apertures; Beam optics; extended interaction klystron (EIK); genetic algorithms (GAs); internal coupling cavity; V-band; STABILITY; CIRCUIT;

D O I：

10.1109/TED.2022.3159260

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 article, the design study of a V-band klystron with an internal coupling cavity is presented. The effective characteristic impedance of the internal coupling cavity is approximately 25% higher than that of the external coupling cavity when both operate at pi mode. A V-band RF circuit of 35% efficiency has been designed based on the proposed internal coupling cavity. An RF circuit based on single-gap resonators was designed first with the help of genetic algorithms (GAs). Then, a five-gap internal coupling cavity replaced the last several resonators to improve circuit bandwidth and efficiency. Simulation results have shown that the proposed internal coupling cavity can significantly improve the efficiency and bandwidth of an RF circuit based on single-gap resonators. Driven by a 60-kV and 9-A pencil beam, the designed RF circuit can achieve a peak power of 188.5 kW, a gain of 47.8 dB, and a 1-dB bandwidth of 180 MHz. The matching high compression ratio beam optics is also elaborated in this article.

引用

页码：2644 / 2649

页数：6

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