| 新型高效率虚阴极振荡器 |
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| 引用本文： | 马乔生.新型高效率虚阴极振荡器[J].强激光与粒子束,2015,27(5):053005. |
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| 作者姓名： | 马乔生 |
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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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| 摘 要： | 结合低磁场返波管振荡器和虚阴极振荡器的优点,设计了一个具有较高效率的虚阴极振荡器,通过添加半反射腔,使虚阴极在由阳极箔、波导和半反射腔组成的准谐振腔内形成,实现器件的高效率、高功率运行。当电子能量和束流分别为480keV和23kA时,采用2.5维粒子模拟(PIC)程序模拟得到频率为3.7GHz、功率为2.6GW的微波输出,器件束波转换效率约为23%。
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| 关 键 词： | 半反射腔 准谐振腔 虚阴极振荡器 粒子模拟 |
| 收稿时间： | 2014-10-31 |
A novel efficient vircator |
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| Affiliation: | 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: | Based on the advantages of the relativistic backward wave oscillator (RBWO) with low magnetic field and vircator, a novel configuration of vircator with a high beam-wave conversion efficiency is presented and the 2.5-D particle-in-cell simulations are carried out using a PIC code. When the energy of the electron is 480 keV while the beam current is 23 kA, a simulated result of 2.6 GW output microwave power with a frequency of 3.7 GHz is obtained, for which the beam-wave conversion efficiency of the vircator is 23%. |
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