The Analysis of Hole-Gap Helical Groove Waveguide |
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| Authors: | Wenxiang Wang Yonghai Lan and Yanyu Wei |
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| Institution: | (1) National Key Laboratory of High Power Vacuum Electrons, University of Electronic Science and Technology of China, Chengdu, Sichuan |
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| Abstract: | The hole-gap helical groove waveguide, as a all-metal slow-wave circuit, has advantages of good heat dissipation and great size, and thus is suitable for use of mm TWT. By means of an approximate field theory, the expressions of the dispersion equation and the coupling impedance of the hole-gap helical groove waveguide is obtained in this paper. The influence of various circuit dimensions on the dispersion relation and the coupling impedance is discussed by the numerical computation. |
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