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Radio-Frequency Characteristics of the Coaxial Step-Disk-Loaded Slow-Wave Structure for Relativistic Travelling Wave Tubes |
| YUE Ling-Na;WANG Wen-Xiang;WEI Yan-Yu;GONG Yu-Bin |
| National Key Laboratory of High Power Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 |
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| Cite this article: |
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YUE Ling-Na, WANG Wen-Xiang, WEI Yan-Yu et al 2005 Chin. Phys. Lett. 22 754-757 |
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Abstract We present a new periodic all-metal slow wave structure, a coaxial step-disc-loaded system and the dispersion characteristics of the structure. By using the field-matching method, the dispersion equation and the coupling impedance of this structure are obtained. The coaxial structure makes the bandwidth broader than that of the non-coaxial one. Compared with the coaxial disc-loaded and ridged-disc-loaded structures, the pass-band of coaxial step-disc-loaded structure is the broadest. The calculation results show that increasing the step width and decreasing the step thickness can improve the bandwidth.
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| Keywords:
84.40.Fe
84.40.Dc
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Published: 01 March 2005
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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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84.40.Dc
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(Microwave circuits)
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