Analysis of space harmonic selectivity of period-varying 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)
National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
Abstract A period-varying folded waveguide is formed by varying the period of a folded waveguide. It has the advantages of the space harmonic selectivity and the wide bandwidth. However, the regularities of the variety of these period-varying folded waveguides are unavailable from the published papers. In order to solve this problem, the principle of the space harmonic selectivity of a period-varying folded waveguide is analysed, and the conditions to select the space harmonic for this slow wave system are obtained. In addition, the space harmonic selectivities for a linear period-varying folded waveguide and a hyperbolic sine-varying period folded waveguide are also analysed as examples.
Received: 22 August 2008
Revised: 01 September 2008
Accepted manuscript online:
Fund: Project supported by the National
Natural Science Foundation of China (Grant Nos 60532010 and
60401005).
Cite this article:
Xu Ao(徐翱), Wang Wen-Xiang(王文祥), Wei Yan-Yu(魏彦玉), and Gong Yu-Bin(宫玉彬) Analysis of space harmonic selectivity of period-varying folded waveguide 2009 Chin. Phys. B 18 1270
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