| 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(1):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,四川成都,610054 |
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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.采用几何光学理论分析圆波导准光辐射器,根据高斯波束(TEM00模)在辐射器切口处形成的原因,利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140 GHz、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205.2 mm,切口长度为47.2 mm,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： | 2013/8/20 |
| 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(1):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 in high power gyrotron. The circular waveguide quasi-optical launcher was analyzed with the theory of geometrical optics. To form the Gaussian mode(TEM00) at the cut of the launcher, the coupled-wave theory was employed to design corrugated waveguide quasi-optical launcher. A high efficiency launcher has been designed for 140GHz, TE28,8 mode. Results show that total length of the launcher is only 205.2mm, and the cut length is 47.2mm. At the helical cut the scalar correlation efficiency of the Gaussian mode in the Brillouin zone is greater than 98%. The method can also be used for the designs of other frequency and mode gyrotron quasi-optical launcher. |
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| Keywords: | gyrotron quasi-optical launcher geometrical optics coupled-wave theory |
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