Analysis and simulation of self-excitation in double gap coupling cavity

quan ya-min; ding yao-gen; wang shu-zhong

Volume 20 Issue 10

Oct. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(10): 0-

zhang mei, wang kuilu, wei fuli, et al. Time response of large-core step-index fiber transmission system with scintillator illumination[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

quan ya-min, ding yao-gen, wang shu-zhong. Analysis and simulation of self-excitation in double gap coupling cavity[J]. High Power Laser and Particle Beams, 2008, 20.

zhang mei, wang kuilu, wei fuli, et al. Time response of large-core step-index fiber transmission system with scintillator illumination[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

quan ya-min, ding yao-gen, wang shu-zhong. Analysis and simulation of self-excitation in double gap coupling cavity[J]. High Power Laser and Particle Beams, 2008, 20.

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Analysis and simulation of self-excitation in double gap coupling cavity

1.
Institute of Electronics,Chinese Academy of Sciences,P.O.Box 2652,Beijing 100190,China;
2.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

Publish Date: 2008-10-15

Abstract

Abstract

The analytic expression of high order mode electronic conductance model in double gap coupling multi-beam klystron(MBK) cavity is presented. The oscillations of high order modes were studied by the model and field structures have been simulated with electromagnetic field software ISFEL3D. It is shown that there are self-excitation modes 2.9 GHz and 3.89 GHz in the double gap coupling MBK cavity, which is verified by the three-dimensional PIC simulation. In addition, the corresponding self-excitation modes’ frequencies are also given with the temperature increase of the absorbing cavity and coupling ring by the analysis of experimental results.
- multi-beam klystron,
- double gap coupling cavity,
- self-excitation,
- high order mode,
- electronic conductance

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