Design of a quasi-optical mode converter for a 170 GHz gyrotron

doi:10.11972/j.issn.1001-9014.2022.03.006

Home > Archive>Volume 41, Issue 3, 2022 >557-562. DOI:10.11972/j.issn.1001-9014.2022.03.006

Design of a quasi-optical mode converter for a 170 GHz gyrotron
DOI:
                        10.11972/j.issn.1001-9014.2022.03.006
                    
Author:
                        
                        
                    
Affiliation:1.Key Laboratory of High Power Microwave Sources and Technologies，Aerospace Information Research Institute， Chinese Academy of Sciences， Beijing 101400， China;2.University of Chinese Academy of Sciences， Beijing 100049， China;3.Hisense Mobile Communication Technology Co.， Ltd. Qingdao 266555， China
Clc Number:TN12
Fund Project:Supported by the National Natural Science Foundation of China（61571418，61531002）

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Abstract:

A high efficiency Denisov-type quasi-optical mode converter for a 170 GHzmode gyrotron is presented. The mode converter comprises a dimpled-wall launcher and a mirror system. Based on the coupled mode theory， the advanced launcher having two stages of perturbations is investigated. A mirror system of the converter is optimized and designed by using the vector diffraction theory. Simulation results show that the good Gaussian mode is converted from the circular waveguide mode and the mode conversion efficiency of a quasi-optical mode converter is 93.7%.

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XU Shou-Xi, YANG Jie, WANG Hu, GENG Zhi-Hui, ZHANG Rui. Design of a quasi-optical mode converter for a 170 GHz gyrotron[J]. Journal of Infrared and Millimeter Waves,2022,41(3):557~562

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Received:April 07,2021
Revised:January 17,2022
Adopted:May 24,2021
Online: January 17,2022
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