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S波段TE11输出相对论磁控管永磁包装仿真设计

崔越 秦奋 徐莎 雷禄容 张勇 张玉涵

崔越, 秦奋, 徐莎, 等. S波段TE11输出相对论磁控管永磁包装仿真设计[J]. 强激光与粒子束, 2025, 37: 013004. doi: 10.11884/HPLPB202537.240353
引用本文: 崔越, 秦奋, 徐莎, 等. S波段TE11输出相对论磁控管永磁包装仿真设计[J]. 强激光与粒子束, 2025, 37: 013004. doi: 10.11884/HPLPB202537.240353
Cui Yue, Qin Fen, Xu Sha, et al. Design of permanent magnet packaging for an S-band relativistic magnetron with TE11 mode output[J]. High Power Laser and Particle Beams, 2025, 37: 013004. doi: 10.11884/HPLPB202537.240353
Citation: Cui Yue, Qin Fen, Xu Sha, et al. Design of permanent magnet packaging for an S-band relativistic magnetron with TE11 mode output[J]. High Power Laser and Particle Beams, 2025, 37: 013004. doi: 10.11884/HPLPB202537.240353

S波段TE11输出相对论磁控管永磁包装仿真设计

doi: 10.11884/HPLPB202537.240353
详细信息
    作者简介:

    崔 越,2065573874@qq.com

    通讯作者:

    徐 莎,sc171996@sina.com

  • 中图分类号: TN121

Design of permanent magnet packaging for an S-band relativistic magnetron with TE11 mode output

  • 摘要: 对一个S波段TE11输出8腔全腔提取相对论磁控管(R8 ACAE-RM)的永磁包装设计进行了初步探索。采用一种内磁块和外磁块相组合的结构,内磁块置于阳极筒内阳极块两端,外磁块置于阳极筒外,在互作用区产生磁感应强度约为0.34 T,轴向均匀区长度为72 mm的磁场,永磁体重量仅为21 kg。相较于传统外磁体系统,该设计可以使磁体重量降低,互作用区磁场强度更加均匀,系统结构更加紧凑,满足高功率微波源系统的轻量化、小型化需求。相对论磁控管选择$ \mathit{\pi } $模作为其工作模式,通过全腔提取结构输出4个90°扇形TE11模式,最后通过同轴插板模式转换器进行模式转换输出圆波导TE11模式。利用粒子模拟软件对器件仿真模拟,在二极管电压320 kV,永磁体产生的磁场空间下,R8 ACAE-RM获得了1.06 GW的微波输出功率,微波中心频率为2.44 GHz,转换效率约为47%。
  • 图  1  8腔全腔提取相对论磁控管(R8 ACAE-RM)结构示意图

    Figure  1.  Schematic of 8-cavity all-cavity axial extraction relativistic magnetron (R8 ACAE-RM)

    图  2  模变结构示意图

    Figure  2.  Schematic of mode conversion structure

    图  3  4路90°扇形波导TE11模到圆波导TE11模的模式转换效率

    Figure  3.  Mode conversion efficiency of the extraction structure from four 90° sector waveguide TE11 mode to circular waveguide TE11 mode

    图  4  内外磁块位置图

    Figure  4.  Diagram of the location of the inner and outer magnetic blocks

    图  5  磁场磁感线示意图

    Figure  5.  Schematic diagram of magnetic inductance lines in a magnetic field

    图  6  中心轴线磁感应强度曲线

    Figure  6.  Magnetic induction intensity curve of the central axis

    图  7  8腔ACAE-RM中电场图

    Figure  7.  Electric field in the proposed R8 ACAE-RM

    图  8  不同位置的电场分布

    Figure  8.  Spatial distribution of electric field at different positions

    图  9  输入电压及TE11、TM01、TE21模式的输出功率

    Figure  9.  Voltage and different output power with TE11,TM01,TE21

    图  10  0.34 T下不同电压的输出功率和效率

    Figure  10.  Output power and power conversion efficiency with different voltages when the magnetic field is 0.34 T

    图  11  320 kV、0.34 T下的均匀磁场下输出性能

    Figure  11.  Average output power and spectral characteristics when the applied voltage is 320 kV and the axial magnetic field is 0.34 T

    图  12  320 kV时内外磁块产生磁场下输出性能

    Figure  12.  Average output power and spectral characteristics when the applied voltage is 320 kV and the axial magnetic field is generated by the inner and outer magnetic blocks

    图  13  内磁块和端帽附近场强

    Figure  13.  Field strength near the inner magnetic block and end cap

    表  1  R8 ACAE-RM结构参数

    Table  1.   Parameters of simulated R8 ACAE-RM

    length of anode
    block, L/mm
    outer radius of
    cathode, Roc/mm
    inner radius of
    cathode, Ric/mm
    length of cathode
    emitter, Le/mm
    anode radius,
    RA/mm
    cavity radius,
    RCv/mm
    rectangular vane
    width, w/mm
    open angle of
    coupling slot, θ/(°)
    72 11 10 72 22 38 10 17
    下载: 导出CSV

    表  2  同轴插板模式转换器的结构参数

    Table  2.   Parameters of the coaxial-plate-inserted mode converter

    length of short
    board, L1/mm
    length of long
    board, L2/mm
    length of symmetrical
    board, L3/mm
    length of
    cone, LC/mm
    cone radius,
    RC/mm
    circular waveguide
    radius, RO/mm
    length of step
    board, LS/mm
    13627729999216280
    下载: 导出CSV

    表  3  S波段TE11模式输出相对论磁控管的比较

    Table  3.   Comparison of studies on S-band relativistic magnetron with TE11 mode output

    voltage/kVmagnetic field/Toutput power/GWefficiency/%
    Ref [14]5080.310.5415.00
    Ref [15]5850.371.2032.2
    Ref [16]3520.340.5762.5
    this work3200.341.0747.00
    下载: 导出CSV
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    Wang Dong, Qin Fen, Yang Yulin, et al. Design of L band all cavity axial extraction relativistic magnetron[J]. High Power Laser and Particle Beams, 2016, 28: 033013 doi: 10.11884/HPLPB201628.033013
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    Zhou Hao, Cai Weihong, Wang Jiaoyin, et al. Research on mechanism of transparent cathode in relativistic magnetron[J]. High Power Laser and Particle Beams, 2021, 33: 073007 doi: 10.11884/HPLPB202133.210089
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    [12] 刘则阳, 李思锐, 樊玉伟, 等. 阴极帽结构L波段相对论磁控管的效率提升[J]. 强激光与粒子束, 2021, 33:073006 doi: 10.11884/HPLPB202133.210119

    Liu Zeyang, Li Sirui, Fan Yuwei, et al. Efficiency enhancement of L-band relativistic magnetron with endcaps[J]. High Power Laser and Particle Beams, 2021, 33: 073006 doi: 10.11884/HPLPB202133.210119
    [13] 刘庆想, 袁成卫. 同轴插板式TEM-TE11模式转换器的设计与实验研究[J]. 强激光与粒子束, 2005, 17(6):897-900

    Liu Qingxiang, Yuan Chengwei, et al. Design and experiment study of coaxial fin-inserted TEM-TE11 mode converter[J]. High Power Laser and Particle Beams, 2005, 17(6): 897-900
    [14] Li Wei, Liu Youggui, Shu Ting, et al. Experimental investigation of a compact relativistic magnetron with axial TE11 mode radiation[J]. Chinese Physics B, 2012, 21: 088401. doi: 10.1088/1674-1056/21/8/088401
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    Zhang Wei, Xu Sha, Qin Fen, et al. Design of a compact S-band relativistic magnetron operating at low magnetic field[J]. High Power Laser and Particle Beams, 2023, 35: 093001 doi: 10.11884/HPLPB202335.230058
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出版历程
  • 收稿日期:  2024-10-09
  • 修回日期:  2024-11-29
  • 录用日期:  2024-11-29
  • 网络出版日期:  2024-12-19
  • 刊出日期:  2025-12-13

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