| 一种新型的高功率高频率同轴渡越时间振荡器 |
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| 引用本文： | 杨温渊,丁武.一种新型的高功率高频率同轴渡越时间振荡器[J].强激光与粒子束,2003,15(4):363-366. |
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| 作者姓名： | 杨温渊 丁武 |
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| 作者单位： | 北京应用物理与计算数学研究所， 北京 100088 |
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| 基金项目： | 国家863计划项目资助课题 |
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| 摘 要： | 提出了一种高频率和高功率的渡越时间振荡器,并且对其进行了理论和数值研究。这种振荡器采用同轴结构，功率容量大，不需要外加引导磁场聚焦电子束，波束相互作用区短，保持了传统渡越时间振荡器在结构上的简单性和输出信号的稳定性；运用电压为225kV和电流为11kA的电子束进行模拟，在X波段获得了峰值功率为1.4GW，频率为8.335GHz的微波输出。
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| 关 键 词： | 高速摄影 高速变像管扫描相机 喷气Z-pinch 等离子体 |
| 文章编号： | 1001-4322(2003)04-0363-04 |
| 收稿时间： | 2002/6/16 |
| 修稿时间： | 2002年6月16日 |
A novel high power and high frequency coaxial transit-time oscillator |
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| yang wen yuan,ding wu.A novel high power and high frequency coaxial transit-time oscillator[J].High Power Laser and Particle Beams,2003,15(4):363-366. |
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| Authors: | yang wen yuan ding wu |
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| Institution: | Institute of Applied Physics and Computational Mathematics， P.O.Box 8009 11, Beijing 100088, China |
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| Abstract: | A new structure of high power and high frequency microwave oscillator based on the transit-time instability is proposed and studied numerically in this paper. Due to its coaxial structure with large radius, the oscillator allows large input and output power and can work at higher frequency. Without external magnetic field being used for beam focusing, it keeps the simplicity of a conventional transit-time oscillator. Using an electron beam of 225 kV and 11 kA, a stable and monochromatic output with peak power of 1.4 GW is achieved by simulation at 8.335 GHz with an rms efficiency of 28%. |
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| Keywords: | Coaxial structure Transit-time oscillator Numerical simulation |
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