S band radial beam coaxial grating backward wave oscillator

Wang Zhanliang; Wang Huanyu; He Ziyuan; Lu Zhigang; Gong Huarong; Wang Shaomeng; Gong Yubin

doi:10.11884/HPLPB202335.230198

Volume 35 Issue 11

Oct. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(11): 113001

Wang Zhanliang, Wang Huanyu, He Ziyuan, et al. S band radial beam coaxial grating backward wave oscillator[J]. High Power Laser and Particle Beams, 2023, 35: 113001. doi: 10.11884/HPLPB202335.230198

Citation:

Wang Zhanliang, Wang Huanyu, He Ziyuan, et al. S band radial beam coaxial grating backward wave oscillator[J]. High Power Laser and Particle Beams, 2023, 35: 113001. doi: 10.11884/HPLPB202335.230198

Wang Zhanliang, Wang Huanyu, He Ziyuan, et al. S band radial beam coaxial grating backward wave oscillator[J]. High Power Laser and Particle Beams, 2023, 35: 113001. doi: 10.11884/HPLPB202335.230198

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S band radial beam coaxial grating backward wave oscillator

doi: 10.11884/HPLPB202335.230198

1.
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
2.
Science and Technology on Low-Light-Level Night Vision Laboratory, Xi’an 710000, China
3.
Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen 518000, China

Funds: National Key R&D Program (G072022YFF0707602); Guangdong Key R&D Program (2021B0101300003)

More Information

Corresponding author: Wang Zhanliang, 46969449@qq.com。
Received Date: 2023-06-28
Accepted Date: 2023-10-23
Rev Recd Date: 2023-10-20

Available Online: 2023-11-02

Publish Date: 2023-11-11

Abstract

Abstract

High power microwave devices are investigated extensively, because of their potential applications, such as advanced radars, electromagnetic warfare systems. However, low efficiency, enormous volume, huge weight and short lifetime limit their applications. In this paper, a coaxial grating slow wave structure backward wave oscillator (BWO) driven by radial beam is proposed. The focusing system is eliminated in the particle in cell simulation, which can reduce the volume and the power loss in practice. The lifetime of the BWO can also be improved with the thermionic radial beam cathode instead of the explosive emission cathode. After optimization, the BWO driven by 460 kV, 6 kA radial beam can produce 1.2 GW at frequency 3.8 GHz, with the efficiency of 43.5%.
- radial electron beam,
- back wave oscillator,
- high power microwave

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References

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