中国物理B ›› 2012, Vol. 21 ›› Issue (6): 68402-068402.doi: 10.1088/1674-1056/21/6/068402

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

Research of sine waveguide slow-wave structure for a 220-GHz backward wave oscillator

许雄, 魏彦玉, 沈飞, 黄民智, 唐涛, 段兆云, 宫玉彬   

  1. National Key Laboratory of Science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2011-11-04 修回日期:2011-12-07 出版日期:2012-05-01 发布日期:2012-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 61125103), the National Natural Science Foundation of China (Grant Nos. 60971038 and 60971031), and the Fundamental Research Funds for the Central Universities, China (Grant No. ZYGX2009Z003).

Research of sine waveguide slow-wave structure for a 220-GHz backward wave oscillator

Xu Xiong(许雄), Wei Yan-Yu(魏彦玉), Shen Fei(沈飞), Huang Min-Zhi(黄民智), Tang Tao(唐涛), Duan Zhao-Yun(段兆云), and Gong Yu-Bin(宫玉彬)   

  1. National Key Laboratory of Science and Technology on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2011-11-04 Revised:2011-12-07 Online:2012-05-01 Published:2012-05-01
  • Contact: Wei Yan-Yu E-mail:yywei@uestc.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 61125103), the National Natural Science Foundation of China (Grant Nos. 60971038 and 60971031), and the Fundamental Research Funds for the Central Universities, China (Grant No. ZYGX2009Z003).

摘要: A watt-class backward wave oscillator is proposed, using the concise sine waveguide slow-wave structure combined with a pencil electron beam to operate at 220 GHz. Firstly, the dispersion curve of the sine waveguide is calculated, then, the oscillation frequency and operating voltage of the device are predicted and the circuit transmission loss is calculated. Finally, the particle-in-cell simulation method is used to forecast its radiation performance. The results show that this novel backward wave oscillator can produce over 1-W continuous wave power output in a frequency range from 210 GHz to 230 GHz. Therefore, it will be considered as a very promising high-power millimeter-wave to terahertz-wave radiation source.

关键词: backward wave oscillator, sine waveguide, slow-wave structure, terahertz

Abstract: A watt-class backward wave oscillator is proposed, using the concise sine waveguide slow-wave structure combined with a pencil electron beam to operate at 220 GHz. Firstly, the dispersion curve of the sine waveguide is calculated, then, the oscillation frequency and operating voltage of the device are predicted and the circuit transmission loss is calculated. Finally, the particle-in-cell simulation method is used to forecast its radiation performance. The results show that this novel backward wave oscillator can produce over 1-W continuous wave power output in a frequency range from 210 GHz to 230 GHz. Therefore, it will be considered as a very promising high-power millimeter-wave to terahertz-wave radiation source.

Key words: backward wave oscillator, sine waveguide, slow-wave structure, terahertz

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

  • 84.40.Fe
52.59.-f (Intense particle beams and radiation sources) 07.57.Hm (Infrared, submillimeter wave, microwave, and radiowave sources)