中国物理B ›› 2012, Vol. 21 ›› Issue (8): 88401-088401.doi: 10.1088/1674-1056/21/8/088401

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

Experimental investigation of a compact relativistic magnetron with axial TE11 mode radiation

李伟, 刘永贵, 舒挺, 钱宝良   

  1. College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • 收稿日期:2011-12-15 修回日期:2011-12-28 出版日期:2012-07-01 发布日期:2012-07-01

Experimental investigation of a compact relativistic magnetron with axial TE11 mode radiation

Li Wei (李伟), Liu Yong-Gui (刘永贵), Shu Ting (舒挺), Qian Bao-Liang (钱宝良 )   

  1. College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2011-12-15 Revised:2011-12-28 Online:2012-07-01 Published:2012-07-01
  • Contact: Li Wei E-mail:nudt weili@yahoo.com

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摘要： As one of the relativistic electron tubes having compact configuration and high efficient output, the relativistic magnetron with directly axial radiation is very attractive in pulsed power and high power microwave fields for industrial and military applications. In this paper, the experimental investigation of a relativistic magnetron with axial TE11 mode radiation is reported. Under a total length of ～ 0.3 m and the volume of ～ 0.014 m3, working at an applied voltage of 508 kV and a magnetic field of ～ 0.31 T, the relativistic magnetron radiates a microwave of 540 MW with TE11 mode at 2.35 GHz in the axial direction. The power conversion efficiency is 15.0%. After a lot of shots, the detected amplitudes of microwaves are nearly the same. The fluctuations of wave amplitudes are less than 0.3 dB.

关键词: relativistic magnetron with axial radiation, modified magnetic field distribution, compact configuration, high power microwave

Abstract: As one of the relativistic electron tubes having compact configuration and high efficient output, the relativistic magnetron with directly axial radiation is very attractive in pulsed power and high power microwave fields for industrial and military applications. In this paper, the experimental investigation of a relativistic magnetron with axial TE11 mode radiation is reported. Under a total length of ～ 0.3 m and the volume of ～ 0.014 m3, working at an applied voltage of 508 kV and a magnetic field of ～ 0.31 T, the relativistic magnetron radiates a microwave of 540 MW with TE11 mode at 2.35 GHz in the axial direction. The power conversion efficiency is 15.0%. After a lot of shots, the detected amplitudes of microwaves are nearly the same. The fluctuations of wave amplitudes are less than 0.3 dB.

Key words: relativistic magnetron with axial radiation, modified magnetic field distribution, compact configuration, high power microwave

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

  • 84.40.Fe
52.35.Hr (Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))