A Compact Relativistic Magnetron With Lower Output Mode

A Compact Relativistic Magnetron With Lower Output Mode
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具有较低输出模式的紧凑型相对论磁控管

DOI:
10.1109/ted.2019.2898446
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发表时间:
2019-04
影响因子:
3.1
通讯作者:
Wang Dong
Wang Dong
中科院分区:
工程技术2区
文献类型:
--
作者:
Qin Fen;Xu Sha;Lei Lu Rong;Ju Bin Quan;Wang Dong

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提出了一种具有新型轴向输出结构的紧凑型相对论磁控管(RM),该结构在输出区提取低阶圆柱模(TM 01或TE 11模)或同轴模(TEM或TE 11模)。在该输出配置(即,多天线输出RM)中,若干导电杆连接到磁控管的阳极叶片并且沿轴向方向布置以用作提取天线。高频分析表明,这种输出结构可以有效地激励低阶圆柱RF模式,而无需显著扩大输出波导尺寸,从而使磁场产生系统更加紧凑,显著减小了管的整体体积和重量。在粒子模拟中,L波段多天线输出结构的RM的最大微波效率为47%。初步实验结果表明,多天线输出的微波源具有产生1GW以上高功率微波的能力。
A compact relativistic magnetron (RM) with novel axial output configuration is proposed, which extracts lower order cylindrical mode (TM01 or TE11 mode) or coaxial mode (TEM or TE11 mode) in the output region. In this output configuration (namely, multiantenna output RM), several conducting rods are connected to the anode vanes of the magnetron and arranged in the axial direction to serve as the extraction antennas. High-frequency analysis demonstrates that this output structure excites lower order cylindrical RF modes efficiently without the significant expansion of the output waveguide dimension that brings a more compact magnetic field-producing system which reduces the whole volume and weight of the tube remarkably. The maximum microwave efficiency of 47% has been obtained for an L-band RM with the multiantenna output structure in particle-in-cell simulations. Primary experiments had been carried out, which validated that RM with multiantenna output has the capacity to generate high- power microwave over 1 GW.
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