| 等离子体-腔混合模耦合腔行波管非线性注-波互作用分析 |
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| 引用本文： | 李建清,江丽军,莫元龙.等离子体-腔混合模耦合腔行波管非线性注-波互作用分析[J].强激光与粒子束,2004,16(11):1429-1433. |
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| 作者姓名： | 李建清 江丽军 莫元龙 |
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| 作者单位： | 电子科技大学 物理电子学院， 四川 成都 610054 |
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| 基金项目： | 大功率微波电真空器件技术重点实验室基金项目资助课题(2000JS10.5.2.DZ0244) |
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| 摘 要： | 用模式展开的方法分析了等离子体-腔混合模耦合腔行波管的非线性注-波互作用过程，导出了其考虑相对论效应的非线性注-波互作用自洽工作方程组。用格林函数法求解各向异性背景等离子体（介电常数张量）下的空间电荷场。编写了计算机模拟软件，用来分析等离子体-腔混合模耦合腔行波管的增益、效率、输出功率、瞬时带宽等重要的非线性特性，计算结果表明：工作在等离子体-腔混合模式下的耦合腔行波管，瞬时带宽达到20%~30%，效率达到50%以上。
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| 关 键 词： | 耦合腔行波管 等离子体-腔混合模 空间电荷场 非线性注-波互作用 各向异性等离子体 |
| 文章编号： | 1001-4322(2004)11-1429-05 |
| 收稿时间： | 2003/7/14 |
| 修稿时间： | 2003年7月14日 |
Nonlinear beam-wave interaction in coupled-cavity TWT working in plasma-cavity hybrid mode |
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| LI Jian-qing,JIANG Li-jun,MO Yuan-long.Nonlinear beam-wave interaction in coupled-cavity TWT working in plasma-cavity hybrid mode[J].High Power Laser and Particle Beams,2004,16(11):1429-1433. |
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| Authors: | LI Jian-qing JIANG Li-jun MO Yuan-long |
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| Institution: | College of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | The nonlinear beam-wave interaction in coupled-cavity TWT working in plasma-cavity hybrid mode, was studied using the theory of mode expansion, and the nonlinear beam-wave interaction self-consistent working equations have been obtained. The space-charge field with plasma-background was analyzed using the Green's function. A simulation program has been programmed to analyze the nonlinear characteristics in the plasma-cavity hybrid mode coupled-cavity TWT, such as the gain, efficiency, output power. The results show that the warm bandwidth can reach (20～30)% and the efficiency can be more than 50% in coupled-cavity TWT working in plasma-cavity hybrid mode. |
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| Keywords: | Coupled cavity TWT Plasma-cavity hybrid mode Space-charge field Nonlinear beam-wave interaction Nonisotropic plasma |
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