Efficiency Enhancement of a 170?GHz Confocal Gyrotron Traveling Wave Tube

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• 作者：Youwei Yang ; Sheng Yu ; Yinghui Liu ; Tianzhong Zhang…
• 关键词：Confocal ; Gyro ; TWT ; Efficiency ; Special MIG
• 刊名：Journal of Fusion Energy
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：34
• 期：4
• 页码：721-726
• 全文大小：1,377 KB
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• 作者单位：Youwei Yang (1)
  Sheng Yu (1)
  Yinghui Liu (1)
  Tianzhong Zhang (1)
  Yanyan Zhang (1)
  Qixiang Zhao (1)
  
  1. Terahertz Science and Technology Research Center, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, People’s Republic of China
  
• 刊物类别：Engineering
• 刊物主题：Nuclear Engineering
  
• 出版者：Springer Netherlands
• ISSN：1572-9591

文摘

Confocal gyrotron traveling wave tube (gyro-TWT) is a novel gyrotron amplifier capable of operating in higher order modes while generating high power at the same time. Confocal gyro-TWT suppresses lower-order modes at the cost of reduction of efficiency. According to the characteristics of confocal system, in this paper, we theoretically design a special magnetron injection gun (MIG) for a 170?GHz confocal gyro-TWT, and then compare it with the traditional MIG. The efficiency is found to be as high as 33?%, deservedly higher than the traditional less than 10?%. The output power increases trebly accordingly.