北京航空航天大学学报 ›› 2015, Vol. 41 ›› Issue (10): 1880-1886.doi: 10.13700/j.bh.1001-5965.2015.0231

• 电磁理论与应用 • 上一篇    下一篇

毫米波-太赫兹电子回旋器件的几个基础问题

杜朝海1, 罗里2,3, 刘濮鲲1   

  1. 1. 北京大学信息科学技术学院, 北京 100871;
    2. 中国科学院电子学研究所, 北京 100190;
    3. 中国科学院大学电子电气与通信工程学院, 北京 100049
  • 收稿日期:2015-04-16 修回日期:2015-05-14 出版日期:2015-10-20 发布日期:2015-11-02
  • 通讯作者: 刘濮鲲(1965-),男,教授,pkliu@pku.edu.cn,主要研究方向为微波、毫米波与太赫兹电子学. E-mail:pkliu@pku.edu.cn
  • 作者简介:杜朝海(1982-),男,研究员,duchaohai@pku.edu.cn
  • 基金资助:
    国家自然科学基金面上项目(61471007,11275206);北京大学医学与信息联合种子基金(2014-MI-01);国家"985"重点建设项目

Several fundamental challenges of millimeter-to-terahertz electron cyclotron devices

DU Chaohai1, LUO Li2,3, LIU Pukun1   

  1. 1. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China;
    2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Science, Beijing 100049, China
  • Received:2015-04-16 Revised:2015-05-14 Online:2015-10-20 Published:2015-11-02

摘要: 探索和发展更高频率和更高功率水平的电磁波源是电子器件长期以来的重要发展方向.本文介绍了基于电子回旋脉塞原理发展起来的电子回旋器件,该类器件在毫米波-太赫兹波段具有高功率的优势.系统探讨了电子回旋器件所面临的欧姆损耗、模式竞争以及对强磁场的依赖性等几个基础问题,指出在深入研究模式竞争机理的基础上发展高阶模式和高次谐波系统将有助于推动电子回旋器件实现高功率、高效率和高稳定性,这对促进器件向太赫兹频段发展具有参考意义.

关键词: 电子回旋脉塞, 回旋器件, 模式竞争, 欧姆损耗, 高次谐波

Abstract: It is always an important tendency of the electronic power devices to explore and develop electromagnetic radiation sources operating on higher frequency and with higher power capability. The cyclotron electron device which was developed based on the mechanism of the electron cyclotron maser and with the excellent advantage of radiating high power in millimeter-to-terahertz range was introduced. It systematically discussed about the fundamental challenges encountered by the electron cyclotron devices, including the strong ohmic dissipation problem, the mode competition problem, and the unavoidable dependency on operating with strong magnetic field. Finally, it was proposed that, on the basis of fully exploring the physical mechanism of the mode competition, to develop higher order mode circuit and higher harmonic interaction system would be very helpful to realize the high power, high efficiency and high stability cyclotron electron devices, which is of important reference for guiding devices development towards terahertz band.

Key words: electron cyclotron maser, gyrotron devices, mode competition, ohmic dissipation, higher harmonic

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