中国物理B ›› 2009, Vol. 18 ›› Issue (2): 810-814.doi: 10.1088/1674-1056/18/2/066

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

The study of synchronization in the periodic nonuniform folded waveguide

徐翱, 王文祥, 魏彦玉, 宫玉彬   

  1. National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2008-07-07 修回日期:2008-09-17 出版日期:2009-02-20 发布日期:2009-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60532010 and 60401005).

The study of synchronization in the periodic nonuniform folded waveguide

Xu Ao(徐翱)†, Wang Wen-Xiang(王文祥), Wei Yan-Yu(魏彦玉), and Gong Yu-Bin(宫玉彬)   

  1. National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2008-07-07 Revised:2008-09-17 Online:2009-02-20 Published:2009-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60532010 and 60401005).

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摘要： The periodic nonuniform folded waveguides are special structures, the physical dimension of which is between the periodic folded waveguide and the tapering period folded waveguide. Therefore, the synchronization between the microwave and the electron beam can be maintained in the whole interaction process and the periods are not tapered. In comparison with the tapering period folded waveguide, the theoretical analysis and the technological requirements for this structure are more convenient. In order to study this structure, the space harmonics are analysed, the conditions to make the m-th space harmonic synchronizing with the electron beam in the whole interaction process are present, and the dispersion curve and the coupling impedance curve are obtained by the simulation software HFSS.

Abstract: The periodic nonuniform folded waveguides are special structures, the physical dimension of which is between the periodic folded waveguide and the tapering period folded waveguide. Therefore, the synchronization between the microwave and the electron beam can be maintained in the whole interaction process and the periods are not tapered. In comparison with the tapering period folded waveguide, the theoretical analysis and the technological requirements for this structure are more convenient. In order to study this structure, the space harmonics are analysed, the conditions to make the m-th space harmonic synchronizing with the electron beam in the whole interaction process are present, and the dispersion curve and the coupling impedance curve are obtained by the simulation software HFSS.

Key words: folded waveguide, nonuniform, synchronization, physical dimension

中图分类号:  (Waveguides, transmission lines, striplines)

  • 84.40.Az
84.40.Fe (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))