中国物理B ›› 2016, Vol. 25 ›› Issue (10): 108401-108401.doi: 10.1088/1674-1056/25/10/108401

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Mode analysis and design of 0.3-THz Clinotron

Shuang Li(李爽), Jian-Guo Wang(王建国), Guang-Qiang Wang(王光强), Peng Zeng(曾鹏), Dong-Yang Wang(王东阳)   

  1. 1 Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China;
    2 Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • 收稿日期:2016-04-24 修回日期:2016-05-31 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Jian-Guo Wang E-mail:wanguiuc@mail.xjtu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61231003).

Mode analysis and design of 0.3-THz Clinotron

Shuang Li(李爽)1,2, Jian-Guo Wang(王建国)1,2, Guang-Qiang Wang(王光强)2, Peng Zeng(曾鹏)2, Dong-Yang Wang(王东阳)2   

  1. 1 Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China;
    2 Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • Received:2016-04-24 Revised:2016-05-31 Online:2016-10-05 Published:2016-10-05
  • Contact: Jian-Guo Wang E-mail:wanguiuc@mail.xjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61231003).

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摘要： To develop a high-power continuous-wave terahertz source, a Clinotron operating at 0.3 THz is investigated. Based on the analyses of field distribution and coupling impedance, the dispersion characteristic of a rectangular resonator is preliminarily studied. The effective way to select fundamental mode to interact with the electron beam is especially studied. Finally, the structure is optimized by particle-in-cell simulation, and the problems of manufacture tolerance, current density threshold, and heat dissipation during Clinotron's operation are also discussed. The optimum device can work with a good performance under the conditions of 8 kV and 60 mA. With the generation of signal frequency at 315.89 GHz and output power at 12 W on average, this device shows great prospects in the application of terahertz waves.

关键词: terahertz, Clinotron, mode selection, particle simulation

Abstract: To develop a high-power continuous-wave terahertz source, a Clinotron operating at 0.3 THz is investigated. Based on the analyses of field distribution and coupling impedance, the dispersion characteristic of a rectangular resonator is preliminarily studied. The effective way to select fundamental mode to interact with the electron beam is especially studied. Finally, the structure is optimized by particle-in-cell simulation, and the problems of manufacture tolerance, current density threshold, and heat dissipation during Clinotron's operation are also discussed. The optimum device can work with a good performance under the conditions of 8 kV and 60 mA. With the generation of signal frequency at 315.89 GHz and output power at 12 W on average, this device shows great prospects in the application of terahertz waves.

Key words: terahertz, Clinotron, mode selection, particle simulation

中图分类号:  (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))

  • 84.40.Fe
45.10.Db (Variational and optimization methods) 52.65.-y (Plasma simulation)