Investigation of Quasi-optical Mode Converter for W Band Gyrotron

ZHAO Guohui; XUE Qianzhong; WANG Yong; WANG Hu; GENG Zhihui; ZHANG Shan; WANG Xuewei

doi:10.11999/JEIT170998

Volume 40 Issue 7

Jul. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(7): 1767-1773

ZHAO Guohui, XUE Qianzhong, WANG Yong, WANG Hu, GENG Zhihui, ZHANG Shan, WANG Xuewei. Investigation of Quasi-optical Mode Converter for W Band Gyrotron[J]. Journal of Electronics & Information Technology, 2018, 40(7): 1767-1773. doi: 10.11999/JEIT170998

Citation:

ZHAO Guohui, XUE Qianzhong, WANG Yong, WANG Hu, GENG Zhihui, ZHANG Shan, WANG Xuewei. Investigation of Quasi-optical Mode Converter for W Band Gyrotron[J]. Journal of Electronics & Information Technology, 2018, 40(7): 1767-1773. doi: 10.11999/JEIT170998

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Investigation of Quasi-optical Mode Converter for W Band Gyrotron

doi: 10.11999/JEIT170998

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)

Received Date: 2017-10-25
Rev Recd Date: 2018-04-03
Publish Date: 2018-07-19

Abstract

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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References(20)

References

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