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Slow Wave Characteristics of Helix Structure with Elliptical Cross Section |
XIE Jian-Xiang;WEI Yan-Yu;GONG Yu-Bin;FU Cheng-Fang;YUE Ling-Na;WANG
Wen-Xiang |
| National Key Laboratory of High Power Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu 610054 |
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| Cite this article: |
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XIE Jian-Xiang, WEI Yan-Yu, GONG Yu-Bin et al 2007 Chin. Phys. Lett. 24 1106-1109 |
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Abstract We present a novel helix slow wave structure with an elliptical cross section shielded by an elliptical waveguide. The rf characteristics including dispersion properties, interaction impedance of zero mode in this structure have been studied in detail. The theoretical results reveal that weaker dispersion even abnormal dispersion characteristics is obtained with the increasing eccentricity of the elliptical waveguide, while the interaction impedance is enhanced by enlarging the eccentricity of elliptical helix.
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| Keywords:
84.40.Fe
84.47.+w
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Received: 16 November 2006
Published: 26 March 2007
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| PACS: |
84.40.Fe
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(Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))
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84.47.+w
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(Vacuum tubes)
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