| 回旋管准光辐射器研究与设计 |
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| 引用本文： | 刘建卫,赵 青,李宏福.回旋管准光辐射器研究与设计[J].红外与毫米波学报,2015,34(4):60-65. |
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| 作者姓名： | 刘建卫 赵 青 李宏福 |
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| 作者单位： | 电子科技大学 物理电子学院,电子科技大学 物理电子学院,电子科技大学 物理电子学院 |
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| 基金项目： | 国家国际科技合作专项项目(2011DFA63190)；国家自然科学基金(11275045)；四川省国际合作计划项目（2013HH0001） |
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| 摘 要： | 准光辐射器是高功率回旋管准光模式变换器的重要组成部分.本文首先采用几何光学理论分析圆波导准光辐射器,然后根据高斯波束(TEM00模)在辐射器切口处形成的原因,采用耦合波理论设计波纹波导准光辐射器.通过编写程序并进行数值优化完成140GHz,TE28,8模式回旋管波纹波导准光辐射器的设计,结果表明波纹波导辐射器的总长度仅为205.2mm,切口长度为47.2mm,在辐射器螺旋切口Brillouin区内高斯模式标量相关系数大于98%.本文所用的方法也可用于其它频率和模式的回旋管准光辐射器设计.
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| 关 键 词： | 回旋管 准光辐射器 几何光学 耦合波理论 |
| 收稿时间： | 6/7/2013 12:00:00 AM |
| 修稿时间： | 8/5/2013 12:00:00 AM |
Research and design of the quasi-optical mode launcher for the gyrotron |
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| LIU Jian-Wei,ZHAO Qing and LI Hong-fu.Research and design of the quasi-optical mode launcher for the gyrotron[J].Journal of Infrared and Millimeter Waves,2015,34(4):60-65. |
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| Authors: | LIU Jian-Wei ZHAO Qing and LI Hong-fu |
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| Affiliation: | Institute of the Physical Electronics,University of Electronic Science and Technology of China,Institute of the Physical Electronics,University of Electronic Science and Technology of China,Institute of the Physical Electronics,University of Electronic Science and Technology of China |
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| Abstract: | The quasi-optical launcher is an important part of quasi-optical mode converter for high power gyrotron. In this paper the theory of geometrical optics is used to analysis circular waveguide quasi-optical launcher, according to how to form the Gaussian mode (TEM00) at the cut of the launcher, the coupled-wave theory is employed to design corrugated waveguide quasi-optical launcher. Through programming and numerical optimization a high efficiency launcher has been designed for 140GHz, TE28,8 mode. Results show that the launcher total length is only 205.2mm, the cut length is 47.2mm, a helical cut in the Brillouin zone Gaussian mode scalar correlation efficiency greater than 98%. The method also can be used for other frequency and mode gyrotron quasi-optical launcher designs. |
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| Keywords: | gyrotron quasi-optical launcher geometrical optics coupled-wave theory |
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