回旋管准光辐射器研究与设计

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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Bibliographic Details
Published in红外与毫米波学报 Vol. 34; no. 1; pp. 60 - 65
Main Author 刘建卫 赵青
Format Journal Article
LanguageChinese
Published 电子科技大学物理电子学院,四川成都,610054 2015
Subjects
准光辐射器
几何光学
回旋管
耦合波理论
回旋管
耦合波理论
几何光学
quasi-optical launcher
gyrotron
geometrical optics
coupled-wave theory
准光辐射器
Online AccessGet full text
ISSN1001-9014
DOI10.3724/SP.J.1010.2015.00060

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Summary: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.
Bibliography: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 140 GHz,TE28,8 mode. Results showthat total length of the launcher is only 205. 2 mm,and the cut length is 47. 2 mm. 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.
LIU Jian-Wei , ZHAO Qing （Institute of the Physical Electronics, University of Electronic Science and Technology of China, ChengDu 610054, China）
31-1577/TN
gyrotron; quasi-optical launcher; geometrical optics; coupled-wave theory
ISSN:1001-9014
DOI:10.3724/SP.J.1010.2015.00060