High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

WU Yang; XU Zhou; LI Zheng-Hong; MA Qiao-Sheng; TANG Chuan-Xiang

doi:10.1088/1674-1137/36/8/011

Chinese Physics C> 2012, Vol. 36> Issue(8) : 750-752 DOI: 10.1088/1674-1137/36/8/011

High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

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Abstract：
Backward wave oscillators (BWOs) driven by intense relativistic electron beams are very efficient means of producing high-power microwaves. However, the efficiency of conventional BWO is lower than 30%. An X-band oversized BWO with non-uniform slow wave structure is designed to improve RF output characteristics. In particle-in-cell simulation, a high power microwave with a power of 8.0 GW and efficiency of 40% is obtained, compared with that of 30% obtained in a conventional relativistic BWO.

References

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WU Yang, XU Zhou, LI Zheng-Hong, MA Qiao-Sheng and TANG Chuan-Xiang. High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures[J]. Chinese Physics C, 2012, 36(8): 750-752. doi: 10.1088/1674-1137/36/8/011

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Received: 2011-10-26
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

Received Date: 2011-10-26

Accepted Date: 1900-01-01

Available Online: 2012-08-05

Abstract: Backward wave oscillators (BWOs) driven by intense relativistic electron beams are very efficient means of producing high-power microwaves. However, the efficiency of conventional BWO is lower than 30%. An X-band oversized BWO with non-uniform slow wave structure is designed to improve RF output characteristics. In particle-in-cell simulation, a high power microwave with a power of 8.0 GW and efficiency of 40% is obtained, compared with that of 30% obtained in a conventional relativistic BWO.

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