| X波段长脉冲多注相对论速调管放大器杂模振荡抑制北大核心CSCD |
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| 引用本文： | 刘振帮,雷禄容,黄华,金晓,朱磊,王淦平,何琥.X波段长脉冲多注相对论速调管放大器杂模振荡抑制北大核心CSCD[J].强激光与粒子束,2016,28(3):033002-10. |
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| 作者姓名： | 刘振帮 雷禄容 黄华 金晓 朱磊 王淦平 何琥 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621 900 |
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| 基金项目： | 国家自然科学基金项目；中国工程物理研究院科学技术发展基金项目 |
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| 摘 要： | 为进一步提高相对论速调管放大器(RKA)的工作频率和输出功率,开展了X波段GW级长脉冲多注RKA实验研究,对实验中出现的杂模振荡现象进行了模拟和实验分析。结果表明,电子回流是导致实验中出现杂模振荡的主要因素,采取了相应措施减少电子回流从而抑制杂模振荡,实现多注RKA输出微波功率约为0.98GW,脉宽为95ns,频率为9.405GHz。
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| 关 键 词： | 相对论速调管放大器 X波段 长脉冲 杂频振荡 |
| 收稿时间： | 2015-09-10 |
Suppression of parasitic oscillation in X-band long pulse multi-beam relativistic klystron amplifier |
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| Institution: | 1.Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China |
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| Abstract: | An X-band multi-beam relativistic klystron amplifier is designed to increase the output microwave power and the operating frequency of the amplifier tube, and an experimental study is performed on the long pulse accelerator. The parasitic oscillation of relativistic klystron amplifier is explored in particle-in-cell code and experiment, and the results indicate that the parasitic oscillation is mainly excited by retrograde electrons. Special measures are introduced in the device to suppress the retrograde electrons and avoid parasitic oscillation. Output power of 0.98 GW is obtained in the experiment, the microwave frequency is 9.405 GHz, the pulse width is 95 ns, and the amplifier gain is about 43 dB. |
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