W波段回旋管准光模式变换器的研究

赵国慧; 薛谦忠; 王勇; 王虎; 耿志辉; 张珊; 王雪微

doi:10.11999/JEIT170998

W波段回旋管准光模式变换器的研究

doi: 10.11999/JEIT170998

^①(中国科学院电子学研究所北京 101407) ^②(中国科学院大学北京 101408) ^③(山东省科学院海洋仪器仪表研究所青岛 266061)

基金项目:

国家自然科学基金(11475182)

详细信息

作者简介:
赵国慧：女，1990年生，博士生，研究方向为毫米波及太赫兹回旋管. 薛谦忠：男，1962年生，研究员，博士生导师，研究方向为新型毫米波与太赫兹器件及技术、天线理论及其应用. 王勇：男，1964年生，研究员，博士生导师，研究方向为大功率速调管、计算电磁学. 王虎：男，1986年生，博士，研究方向为高功率回旋管. 耿志辉：男，1976年生，副研究员，研究方向为新型高功率微波源及回旋振荡管. 张珊：女，1991年生，博士生，研究方向为高功率回旋管. 王雪微：女，1990年生，博士生，研究方向为高功率回旋管.

中图分类号: TN811; TN814
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出版历程
- 收稿日期: 2017-10-25
- 修回日期: 2018-04-03
- 刊出日期: 2018-07-19

Investigation of Quasi-optical Mode Converter for W Band Gyrotron

ZHAO Guohui^①② XUE Qianzhong^①② WANG Yong^①② WANG Hu^③ GENG Zhihui^① ZHANG Shan^①② WANG Xuewei^①②

Funds:

The National Natural Science Foundation of China (11475182)

摘要

摘要: 该文对W波段TE₆₂模回旋管准光模式变换器的辐射器和镜面系统进行了设计与实验验证。基于耦合模理论，采用两级微扰对辐射器进行了设计，获得了圆波导内壁上的类高斯束斑的场分布；基于惠更斯原理的矢量衍射积分理论，对准光模式变换器的镜面系统进行了优化设计，模拟与计算结果表明准光模式变换器的模式变换效率为92.3%。最后，通过热测实验，验证了输出模式为W波段类高斯模式。
- 回旋管 /
- 准光模式变换器 /
- 数值模拟
Abstract: The design and experimental verification of the launcher and mirror system of W band TE₆₂mode gyrotron quasi optical mode converter are presented. Based on the coupled mode theory, two order perturbation is used to design the launcher. The field distribution of the Gauss beam spot on the inner wall of the circular waveguide is obtained. The vector diffraction integral theory based on Huygens,s principle is used to optimize the mirror system of the optical mode converter. Simulation and calculation results show that the mode conversion efficiency of quasi optical mode the converter is 92.3%. Finally, a thermal measurement experiment is carried out to verify that the output mode is W band Gauss like mode.
- Gyrotron、Quasi-optical mode converter、Numerical simulation /

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参考文献(20)

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