中国物理B ›› 2005, Vol. 14 ›› Issue (11): 2300-2304.doi: 10.1088/1009-1963/14/11/026

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

Variational analysis of the disc-loaded waveguide slow-wave structures

李建清, 莫元龙   

  1. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2005-01-05 修回日期:2005-08-01 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    Project supported by the Foundation of National Key Laboratory for High Power Vacuum Electronics.

Variational analysis of the disc-loaded waveguide slow-wave structures

Li Jian-Qing (李建清), Mo Yuan-Long (莫元龙)   

  1. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2005-01-05 Revised:2005-08-01 Online:2005-11-20 Published:2005-11-20
  • Supported by:
    Project supported by the Foundation of National Key Laboratory for High Power Vacuum Electronics.

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摘要： The variational method is applied to calculate the dispersion characteristics of disc-loaded waveguide slow-wave structures. The parameters describing the waveguide discontinuities in disc-loaded waveguide are calculated by the variational method. Then the dispersion characteristics of slow-wave structures are obtained using lossless microwave quadrupole theory. Good agreement was observed between results of the variational method and those of field matching method and high frequency structure simulator. In the case of broad band, results of the variational method are better than those of field matching method.

Abstract: The variational method is applied to calculate the dispersion characteristics of disc-loaded waveguide slow-wave structures. The parameters describing the waveguide discontinuities in disc-loaded waveguide are calculated by the variational method. Then the dispersion characteristics of slow-wave structures are obtained using lossless microwave quadrupole theory. Good agreement was observed between results of the variational method and those of field matching method and high frequency structure simulator. In the case of broad band, results of the variational method are better than those of field matching method.

Key words: variational method, disc-loaded waveguide, slow-wave structures, dispersion characteristics

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

  • 84.40.Fe
84.40.Az (Waveguides, transmission lines, striplines)