Experimental Research of X-Band Dual-Frequency Coaxial Relativistic Backward Wave Oscillator

Hailong Li; Yizheng Zhu; Yongfu Tang; Lin Meng; Bin Wang; Yong Yin; Maoyan Wang

doi:10.1109/JEDS.2020.3015879

IEEE Journal of the Electron Devices Society (Jan 2020)

Experimental Research of X-Band Dual-Frequency Coaxial Relativistic Backward Wave Oscillator

Hailong Li,
Yizheng Zhu,
Yongfu Tang,
Lin Meng,
Bin Wang,
Yong Yin,
Maoyan Wang

Affiliations

Hailong Li: ORCiD; Vacuum Electronic National Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yizheng Zhu: ORCiD; Vacuum Electronic National Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yongfu Tang: No. 38 Research Institute, Chinese Electronics Technology Group Corporation, Hefei, China
Lin Meng: Vacuum Electronic National Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Bin Wang: Vacuum Electronic National Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yong Yin: ORCiD; Vacuum Electronic National Laboratory, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Maoyan Wang: School of Physics, University of Electronic Science and Technology of China, Chengdu, China

DOI: https://doi.org/10.1109/JEDS.2020.3015879
Journal volume & issue: Vol. 8
pp. 911 – 916

Abstract

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The design and experimental demonstration of an X-band coaxial dual-frequency relativistic backward wave oscillator (CRBWO) with sectioned slow wave structures (SWSs) is presented. In this paper, we describe the experimental measurement methods of frequency, power and operation mode for the high-power microwave signal. In experimental tests, with a 500 kV, 11.5 kA beam guided by a 0.82 T magnetic field, a microwave with an average power of 507 MW and pulsewidth of 50 ns has been obtained. Also, the dominant frequencies of the X-band dual frequency are 9.845 GHz and 10.517 GHz, and the dual-frequency difference Δ ≈ 672 MHz, which was similar to the particle-in-cell simulation results. The operation mode of the device is determined to be TM01 mode in our experiment.

Published in IEEE Journal of the Electron Devices Society

ISSN: 2168-6734 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6245494

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