| 中央开耦合槽矩形双间隙谐振腔中的TM高次模 |
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| 引用本文： | 王宏义,林福民,袁文蛟.中央开耦合槽矩形双间隙谐振腔中的TM高次模[J].强激光与粒子束,2008,20(10). |
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| 作者姓名： | 王宏义 林福民 袁文蛟 |
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| 作者单位： | 1. 汕头大学 物理系， 广东 汕头， 515063; 2. 广东工业大学 物理与光电工程学院， 广州 510006 |
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| 摘 要： | 用解析方法导出了中央开耦合槽矩形双间隙谐振腔中π-TM模式频率的本征方程和特性阻抗的计算公式，分析了耦合槽大小对几种π-TM模式频率和特性阻抗的影响。对TM310模的具体计算结果显示，解析方法与模拟方法的计算结果符合得很好，可以用于计算谐振频率和特性阻抗。研究表明，耦合壁的厚度对π-TM模式频率的影响不大，耦合槽的大小和位置对谐振频率影响则较大。同时发现，在TM高次模双间隙腔中，出现了π1模消失现象。
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| 关 键 词： | 高功率微波 双间隙腔 TM高次模 特性阻抗 |
| 收稿时间： | 1900-01-01; |
TM high order mode of rectangular double-gap cavity with a coupling slot in the center |
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| WANG Hong-yi,LIN Fu-min,Yuan Wen-jiao.TM high order mode of rectangular double-gap cavity with a coupling slot in the center[J].High Power Laser and Particle Beams,2008,20(10). |
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| Authors: | WANG Hong-yi LIN Fu-min Yuan Wen-jiao |
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| Institution: | 1. Department of Physics, Shantou University, Shantou 515063, China; 2. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: | The eigenfrequency and the characteristic impedance of π-TM high order mode of rectangular double-gap cavity with a coupling slot in the center are calculated by analytic method. The influence of sizes and the position of the coupling slot on the frequency and the characteristic impedance of π-TM mode are discussed. The results of the analytic calculation are compared with ISFEL3D simulation results, and it is shown that the analytic results are consistent with the simulation results on the whole, especially for the TM310 mode. Our research shows that the width of the coupling wall in double gap cavity has little influence, while the position and the sizes of the coupling slot have strong influence on the frequency and the characteristic impedance of π-TM modes. Meanwhile, it is found |
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| Keywords: | Double-gap cavity π-TM high order mode Characteristic impedance |
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