Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

doi:10.1088/1674-1056/21/10/104103

中国物理B ›› 2012, Vol. 21 ›› Issue (10): 104103-104103.doi: 10.1088/1674-1056/21/10/104103

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

陈晔^{a b}, 赵鼎^b, 刘文鑫^b, 王勇^b, 万晓声^{a b}

a Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
b Graduate University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2012-01-06 修回日期:2012-04-09 出版日期:2012-09-01 发布日期:2012-09-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 60801031 and 10905032) and the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No. YYYJ-1123-5).

Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

Chen Ye (陈晔)^{a b}, Zhao Ding (赵鼎)^b, Liu Wen-Xin (刘文鑫)^b, Wang Yong (王勇)^b, Wan Xiao-Sheng (万晓声)^{a b}

a Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
b Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2012-01-06 Revised:2012-04-09 Online:2012-09-01 Published:2012-09-01
Contact: Chen Ye E-mail:chenye07@mails.gucas.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 60801031 and 10905032) and the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No. YYYJ-1123-5).

摘要/Abstract

摘要： A three-dimensional model of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam for the beam-wave interaction is proposed. Based on this model, the hybrid-mode dispersion equation is derived with the Borgnis potential function by using the field-matching method. Its approximate solution is obtained under the assumption of a dilute electron beam. By using the Ansoft high frequency structural simulator (HFSS) code, the electromagnetic field distribution in the interaction structure is given. Through numerical calculations, the effects of beam thickness, beam and dielectric-layer gap distance, beam voltage, and current density on the resonant growth rate are analysed in detail.

关键词: rectangular Cerenkov maser, beam-wave interaction, hybrid-mode, dispersion equation, Borgnis potential function

Abstract: A three-dimensional model of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam for the beam-wave interaction is proposed. Based on this model, the hybrid-mode dispersion equation is derived with the Borgnis potential function by using the field-matching method. Its approximate solution is obtained under the assumption of a dilute electron beam. By using the Ansoft high frequency structural simulator (HFSS) code, the electromagnetic field distribution in the interaction structure is given. Through numerical calculations, the effects of beam thickness, beam and dielectric-layer gap distance, beam voltage, and current density on the resonant growth rate are analysed in detail.

Key words: rectangular Cerenkov maser, beam-wave interaction, hybrid-mode, dispersion equation, Borgnis potential function

中图分类号: (Cherenkov radiation)

41.60.Bq

94.20.wj (Wave/particle interactions)

陈晔, 赵鼎, 刘文鑫, 王勇, 万晓声. Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam[J]. 中国物理B, 2012, 21(10): 104103-104103.

Chen Ye (陈晔), Zhao Ding (赵鼎), Liu Wen-Xin (刘文鑫), Wang Yong (王勇), Wan Xiao-Sheng (万晓声). Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam[J]. Chin. Phys. B, 2012, 21(10): 104103-104103.

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Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

Linear theory of a dielectric-loaded rectangular Cerenkov maser with a sheet electron beam

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