Simulation and experiment of relativistic backward wave oscillator with non-uniform rectangular slow-wave structure

Yujun Yan; Yang Wu; Zigang Zhou; Zhenghong Li

doi:10.1117/12.2587456

12 March 2021 Simulation and experiment of relativistic backward wave oscillator with non-uniform rectangular slow-wave structure

Yujun Yan, Yang Wu, Zigang Zhou, Zhenghong Li

Author Affiliations +

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117637L (2021) https://doi.org/10.1117/12.2587456
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

A non-uniform rectangular slow-wave structure relativistic backward wave oscillator (RBWO) is designed in order to realize the miniaturization of high-power microwave (HPM) systems. the structure is Optimized through simulation software to find and analyze the best magnetic field strength, the diode voltage and beam current value of the RBWO. Simulation results found that a microwave with a frequency of 3.533 GHz and a power of 1.19 GW is obtained with an efficiency of 26.3% when the guiding magnetic field 0.24 T, the diode voltage 713 KV and the beam current 6.3 KA. Experimental research is carried out: an output microwave with an average power of 1 GW, a frequency of 3.589 GHz and a pulse width of 95 ns is generated when the external magnetic field is 0.24 T on the high current electron beam accelerator platform. The experimental results lay a good foundation for miniaturization of highpower microwave systems.

Citation Download Citation

Yujun Yan, Yang Wu, Zigang Zhou, and Zhenghong Li "Simulation and experiment of relativistic backward wave oscillator with non-uniform rectangular slow-wave structure", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117637L (12 March 2021); https://doi.org/10.1117/12.2587456

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