衍射输出相对论磁控管的高重频短脉冲运行实验研究

详细信息    查看官网全文

• 英文论文题名：Experimental Investigation of a Relativistic Magnetron with Diffraction Output under Repetitive Short Voltage Pulses Condition
• 论文作者：李伟 ; 张军 ; 钱宝良 ; 杨汉武 ; 张自成
• 英文论文作者：LI Wei ; ZHANG Jun ; QIAN Bao-liang ; YANG Han-wu ; ZHANG Zi-cheng ; College of Optoelectronic Science and Engineering ; National University of Defense Technology
• 年：2014
• 作者机构：国防科技大学光电科学与工程学院;
• 论文关键词：衍射输出相对论磁控管 ; 短脉冲 ; 高重频 ; 高功率微波
• 英文论文关键词：MDO ; short pulse ; high repetition ; High Power Microwave
• 会议召开时间：2014-07-21
• 会议录名称：2014年全国电磁兼容与防护技术学术会议论文集（上）
• 语种：中文
• 分类号：TN123
• 学会代码：WBXB
• 会议名称：2014年全国电磁兼容与防护技术学术会议
• 会议地点：中国湖南常德
• 主办单位：中国电子学会微波分会、中国工程物理研究院复杂电磁环境科学与技术重点实验室、总装备部电磁兼容及防护技术专业组、天线与微波技术重点实验室
• 学会名称：《微波学报》编辑部
• 页数：3
• 文件大小：1264k
• 原文格式：D
• 会议级别：全国

摘要

本文报道了近期衍射输出相对论磁控管在低电压、短脉冲、高重复频率条件下的初步实验研究结果。当外加电压约180k V,磁场约0.12T时,输出微波功率最高可达120MW,微波频率2.3GHz,功率效率22%。在半高宽约7ns,平顶约2.5ns的电脉冲条件下,输出微波底宽3ns,半高宽1.5ns。当器件以50Hz和100Hz高重复频率运行时,输出微波幅值稳定性受电脉冲波动和通电螺线管内的电流波动影响较大,微波功率波动范围90MW至120MW。以脉冲串的形式、长时间高重频运行20000炮次后,器件内部无明显的烧蚀出现。
This paper reports the experimental investigation of a relativistic Magnetron with Diffraction Output(MDO) under repetitive short voltage pulses condition. When applied voltage is ~180k V and axial magnetic field strength is ~0.12 T, the MDO radiates 120 MW of microwave power, 22% of power conversion efficiency, 2.3GHz of central frequency. When voltage pulse width is 7ns and plateau is 2.5ns, output microwave duration is 3ns with pulse width of 1.5ns. At repetitive rates of 50 Hz and 100 Hz, stability of radiated microwaves is related to ripples and jitters of applied voltage and solenoid current. Output microwave powers range from 90 MW to 120 MW. After 2×104 shots with high repetitive pulse string, there are no obvious damage and burns in the MDO.

引文

[1]J.H.Yang,J.M.Gao,T.Shu,H.F.Luo,and J.J.Lin.A novel compact double pulse forming lines.REVIEW OF SCIENTIFIC INSTRUMENTS 84,064706(2013)
    [2]Z.C.Zhang,J.D.Zhang,Z.P.Meng,et al.Experimental studies on repetitive pulsed power modulator with a compact Tesla transformer.17th Int.Conf.High Power Part.Beams,2008.
    [3]X.F.Long and Y.G.Liu.Investigation of Marx-PFN.Chinese Physics C,vol.32,No.1,2008.pp:274-276.
    [4]J.M.Gao,H.W.Yang,S.Li,W.Q.Zhang,Z.X.Liu,and B.L.Qian.Research on a solid state long pulse power generator.3rd Chinese pulsed power conference,2013.(in Chinese)
    [5]W.Li,Y.G.Liu,T.Shu,H.W.Yang,Y.W.Fan,C.W.Yuan,and J.Zhang.Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation[J].Phys.Plasmas 19,013105(2012).
    [6]W.Li,J.Zhang,Y.G.Liu,H.W.Yang,and D.F.Shi,Appl.Phys.Lett.101,223506(2012).
    [7]W Li,Y.G.Liu,J.Zhang,D.F.Shi,and W.Q.Zhang.Experimental investigations on the relations between configuration and radiation patterns of a relativistic magnetron with diffraction output[J].Appl.Phys.113,023304(2013).
    [8]M.I.Fuks,N.F.Kovalev,et al.Mode Coversion in a Magnetron With Axial Extraction of Radiation[J].IEEE Trans.Plasma.Sci.,2006,34(3):620.
    [9]W.Li,J.Zhang,Y.G.Liu,H.W.Yang,and T.Shu.A direct density modulation cathode in magnetron[J].Phys.Plasmas 20,093110(2013).
    [10]W.Li,Y.G.Liu,J.Zhang,T.Shu,H.W.Yang,Y.W.Fan,and C.W.Yuan.Effects of the magnetron cathode on the performance of a relativistic magnetron with axial radiation[J].Rev.Sci.Instrum.83,024707(2012).