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Linear theory of beam-wave interaction in double-slot coupled cavity travelling wave tube |
| Fang-ming He(何昉明)1,2, Wen-qiu Xie(谢文球)3,4, Ji-run Luo(罗积润)3, Min Zhu(朱敏)3, Wei Guo(郭炜)3 |
1. Radar Research (Beijing), Leihua Electronic Technology Institute, AVIC, Beijing 100017, China;
2. Aviation Key Laboratory of Science and Technology on AISSS, Wuxi 214063, China;
3. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
4. University of Chinese Academy of Sciences, Beijing 100039, China |
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Abstract A three-dimensional model of the double-slot coupled cavity slow-wave structure (CCSWS) with a solid round electron beam for the beam-wave interaction is presented. Based on the “cold” dispersion, the “hot” dispersion equation is derived with the Maxwell equations by using the variable separation method and the field-matching method. Through numerical calculations, the effects of the electron beam parameters and the staggered angle between adjacent walls on the linear gain are analyzed.
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Received: 13 August 2015
Revised: 08 December 2015
Accepted manuscript online:
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PACS:
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84.40.Fe
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(Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11205162). |
Corresponding Authors:
Ji-run Luo
E-mail: luojirun@mail.ie.ac.cn
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Cite this article:
Fang-ming He(何昉明), Wen-qiu Xie(谢文球), Ji-run Luo(罗积润), Min Zhu(朱敏), Wei Guo(郭炜) Linear theory of beam-wave interaction in double-slot coupled cavity travelling wave tube 2016 Chin. Phys. B 25 038401
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