| 内孔缝位置对嵌套腔体微波耦合特性的影响 |
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| 引用本文： | 刘强,朱占平,钱宝良.内孔缝位置对嵌套腔体微波耦合特性的影响[J].强激光与粒子束,2007,19(6):919-922. |
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| 作者姓名： | 刘强 朱占平 钱宝良 |
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| 作者单位： | 国防科学技术大学 光电科学与工程学院， 长沙 410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用时域有限差分（FDTD）方法计算了不同内孔缝位置情况下微波脉冲与带缝嵌套圆柱形腔体系统的耦合过程；分别分析了内孔缝位置对外部带缝腔体和内部带缝腔体耦合特性的影响。结果表明:除了内孔缝附近区域以外，内孔缝位置对外腔耦合特性的影响很小，可以忽略不计；但内孔缝位置对内腔耦合特性的影响较大，而且内腔的屏蔽性能由外腔内的耦合场分布以及内孔缝的位置共同决定。
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| 关 键 词： | 微波脉冲 带缝嵌套腔体 耦合特性 时域有限差分 |
| 文章编号： | 1001-4322（2007）06-0919-04 |
| 收稿时间： | 2006/12/12 |
| 修稿时间： | 2006-12-122007-04-13 |
Influence of inner slot position on the coupling of microwave into nested cavities |
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| LIU Qiang,ZHU Zhan-ping,QIAN Bao-liang.Influence of inner slot position on the coupling of microwave into nested cavities[J].High Power Laser and Particle Beams,2007,19(6):919-922. |
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| Authors: | LIU Qiang ZHU Zhan-ping QIAN Bao-liang |
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| Institution: | College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | In this paper,the finite-difference time-domain(FDTD) method was employed to simulate the linear coupling processes of the microwave pulse into the nested cylindrical cavities system with narrow rectangular slots.The influence of the position of the inner slot on the coupling characteristics of outer cavity and inner cavity was analyzed.Except the region near the inner slot,the influence on the coupling characteristics of outer cavity is very small and it can be neglected.However,the influence on the coupling characteristics of inner cavity is significant.The shielding property of the inner cavity is determined jointly by the distribution of coupling field inside the outer cavity and the position of the inner slot. |
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| Keywords: | Microwave pulse Nested cavities with slots Coupling characteristics FDTD |
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