Theoretical and Experimental Investigations on Input Couplers for a G-Band Gyro-TWT

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Electron Devices Pub Date : 2025-01-06 DOI:10.1109/TED.2024.3523264

Taotao Mao;Zhi Yi;Tao Song;Chen Zhang;Xu Qi;Peisheng Liang;Chenghui Zhu;Yuxuan Chai;Ke Chen;Jiao Jiao;Na Yao;Kaichun Zhang;Zhenhua Wu;Yanyu Wei;Yubin Gong;Wei Wang;Diwei Liu

引用次数: 0

Abstract

In this article, two types of circular waveguide TE02 mode input couplers for a G-band gyrotron traveling wave tube (gyro-TWT) are investigated theoretically and experimentally. One uses a cutoff waveguide to connect the electron gun area, and the other uses a Bragg reflector. Back-to-back transmission measurement results agree well with those of computer simulations. The test results show that the 1-dB bandwidth of the input coupler with a cutoff waveguide is about 8.6 GHz and the corresponding 3-dB bandwidth is 20.4 GHz. The 1-dB bandwidth of the input coupler with a Bragg reflector is about 8 GHz and the corresponding 3-dB bandwidth is 16.1 GHz. The input coupler with a cutoff waveguide has a simple structure but a more serious electron interception, and the input coupler with a Bragg reflector can improve electron beam flux, but it will increase manufacturing difficulty.

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来源期刊

IEEE Transactions on Electron Devices 工程技术-工程：电子与电气

CiteScore

5.80

自引率

16.10%

发文量

937

审稿时长

3.8 months

期刊介绍： IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.