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Chinese Physics, 2005, Vol. 14(11): 2300-2304    DOI: 10.1088/1009-1963/14/11/026
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

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

Li Jian-Qing (李建清), Mo Yuan-Long (莫元龙)
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
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.
Keywords:  variational method      disc-loaded waveguide      slow-wave structures      dispersion characteristics  
Received:  05 January 2005      Revised:  01 August 2005      Accepted manuscript online: 
PACS:  84.40.Fe (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))  
  84.40.Az (Waveguides, transmission lines, striplines)  
Fund: Project supported by the Foundation of National Key Laboratory for High Power Vacuum Electronics.

Cite this article: 

Li Jian-Qing (李建清), Mo Yuan-Long (莫元龙) Variational analysis of the disc-loaded waveguide slow-wave structures 2005 Chinese Physics 14 2300

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