X波段五腔渡越管振荡器的理论与实验研究

陈代兵; 刘庆想; 何琥; 苏昶

强激光与粒子束, 2005, 17 (1): 93, 网络出版: 2006-04-28

X波段五腔渡越管振荡器的理论与实验研究

Theoretical and experimental researches on the X-band five-unit transit-time tube oscillator

论文大纲

陈代兵 ¹刘庆想 ²何琥 ¹苏昶 ¹

作者单位

¹ 中国工程物理研究院,应用电子学研究所,四川,绵阳,621900

² 西南交通大学,理学院,四川,成都,610031

摘要

提出了一种新结构的X波段五腔渡越管振荡器,进行了理论和实验研究.根据场分布进行了一维非线性分析,结果表明该结构可以产生高功率微波,并判断了工作模式,为TM₀₁模的3π/5模.采用粒子模拟验证了一维非线性分析的结论,并优化设计出五腔渡越管振荡器,优化结果为:输出功率约1 GW, 工作频率9.3 GHz,束波转换效率约22%.实验中,通过参数调节,得到频率约9.25 GHz,峰值功率约780 MW,脉宽(半高宽)21 ns的输出微波,束波转换效率约为16%.实验结果与模拟结果基本符合.

Abstract

This paper is mainly concerned about the theoretical and experimental research of a novel high-power microwave device of the X-band five-unit Transit-time Tube Oscillator (TTTO), which is based on the transit-time effect. Firstly, the structure model of this kind of oscillator is put forward, and the high-frequency characteristics of the resonator (or cavities) are investigated, which is TM₀₁-3π/5 mode. Secondly, resorting to the one-dimension analysis, the interactions between the electrons and the field of different modes in the resonator are researched. It shows that this TTTO can generate high power microwave. Thirdly, this TTTO is simulated, optimized and designed by the particle simulation code. Finally, the experimental research is carried out. After a series of adjustment, employing an annular electron beam of 700 kV, 7 kA and 40 ns duration, the microwave of over 780 MW of peak power with 21 ns of duration and 16% of efficiency at 9.25 GHz, can be generated.

参考文献

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陈代兵, 刘庆想, 何琥, 苏昶. X波段五腔渡越管振荡器的理论与实验研究[J]. 强激光与粒子束, 2005, 17(1): 93. CHEN Dai-bing, LIU Qing-xiang, HE Hu, SU Chang. Theoretical and experimental researches on the X-band five-unit transit-time tube oscillator[J]. High Power Laser and Particle Beams, 2005, 17(1): 93.

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