| Linear theory of beam–wave interaction in double-slot coupled cavity travelling wave tube |
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| 引用本文： | 何昉明,谢文球,罗积润,朱敏,郭炜.Linear theory of beam–wave interaction in double-slot coupled cavity travelling wave tube[J].中国物理 B,2016,25(3):38401-038401. |
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| 作者姓名： | 何昉明 谢文球 罗积润 朱敏 郭炜 |
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| 作者单位： | 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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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 11205162). |
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| 摘 要： | 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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| 收稿时间： | 2015-08-13 |
Linear theory of beam-wave interaction in double-slot coupled cavity travelling wave tube |
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| Affiliation: | 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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| Keywords: | double-slot coupled cavity slow-wave structure beam-wave interaction field matching method small signal gain |
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