220GHz行波管电子光学系统的设计

2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI:10.1109/CSQRWC.2019.8799316

Zhao Chao, L. Wenxin, Guo Xin, Wang Meng, Wang Yong

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引用次数: 0

摘要

电子光学系统是行波管的关键部件，包括电子枪和聚焦系统。同时，聚焦系统采用了周期永磁体(PPM)，减小了真空电子器件的重量和体积。结果表明，电子束的通过率高，纹波小。EOS的最佳参数为:当工作电压为15kV，漂移管长度为65mm，直径为0.2mm时，阴极表面发出的电流约为25mA。

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Design of an Electron Optics System for 220GHz Traveling Wave Tube

Electron optics system (EOS) which includes Electron gun and focusing system is a key part of Traveling wave tube (TWT). In the meantime, focusing system uses periodic permanent magnet (PPM) to reduce the weight and volume of the vacuum electron device. The results show that the passing rate of electron beam is high and its ripple is low. The optimum parameters of EOS are listed as follows: the current emitted from the surface of cathode is about 25mA when the operating voltage is 15kV, the length and diameter of drift tube are 65mm and 0.2mm, respectively.

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2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)

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