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高匹配高功率低副瓣波导缝隙阵天线的设计与数值模拟

侯万杉 殷勇 秦雨 刘海霞 李文龙 毕亮杰 李海龙 王彬 蒙林

侯万杉, 殷勇, 秦雨, 等. 高匹配高功率低副瓣波导缝隙阵天线的设计与数值模拟[J]. 强激光与粒子束. doi: 10.11884/HPLPB202537.240274
引用本文: 侯万杉, 殷勇, 秦雨, 等. 高匹配高功率低副瓣波导缝隙阵天线的设计与数值模拟[J]. 强激光与粒子束. doi: 10.11884/HPLPB202537.240274
Hou Wanshan, Yin Yong, Qin Yu, et al. Design and numerical simulation of high-matching, high-power, low-sidelobe slotted waveguide array antenna[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240274
Citation: Hou Wanshan, Yin Yong, Qin Yu, et al. Design and numerical simulation of high-matching, high-power, low-sidelobe slotted waveguide array antenna[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.240274

高匹配高功率低副瓣波导缝隙阵天线的设计与数值模拟

doi: 10.11884/HPLPB202537.240274
基金项目: 国家自然科学基金项目(62271113), 中国国家重点研发计划项目(2019YFA0210202), 中央大学基础研究基金项目(ZYGX2019Z006), 四川省自然科学基金项目(2022NSFSC1848, 2023NSFSC1376)
详细信息
    作者简介:

    侯万杉,202311021706@std.uestc.edu.cn

    通讯作者:

    殷 勇,yinyong@uestc.edu.cn

  • 中图分类号: TN123

Design and numerical simulation of high-matching, high-power, low-sidelobe slotted waveguide array antenna

  • 摘要: 研究了波导缝隙阵天线在高功率微波技术中的应用,提出了一种新的设计方法,特别关注了波导缝隙阵天线的缝隙互耦、副瓣电平以及天线和馈源的匹配问题。新方法利用现代计算机技术快速计算出考虑缝隙互耦效应的缝隙电导函数,从而实现波导缝隙阵天线的高效设计,该方法无需复杂运算或外部结构,保证了系统紧凑性,并在设计波导缝隙面阵时表现出更高的有效性。仿真结果表明:新方法设计的天线在匹配度方面表现优异,在中心频率f = 2.458 GHz处,所设计的天线的各个端口的反射系数范围为−37.2 dB至−27.7 dB,相比使用Stevenson公式设计相同目标参数的天线的各个端口的反射系数范围为−11 dB至−8.7 dB,使用新方法设计的天线的各个端口的反射系数至少降低了19 dB。此外,新方法设计的天线实现了−30.2 dB的低副瓣电平和332.6 MW的高功率容量。
  • 图  1  波导缝隙线阵的模型和等效电路

    Figure  1.  Models and equivalent circuit of the waveguide slot line array

    图  2  不同缝隙宽度下线阵的归一化辐射方向图

    Figure  2.  Normalized radiation pattern of the linear array under different slot widths

    图  3  不同缝隙宽度下线阵输入端口的反射系数和内部最强电场

    Figure  3.  Reflection coefficient at the input port and the internal strongest electric field of the linear array under different slot widths

    图  4  端馈波导缝隙平面阵列天线的3D模型

    Figure  4.  3D model of end-fed waveguide slot planar array antenna

    图  5  各端口馈电幅度比不同时提取的缝隙电导函数

    Figure  5.  Slot conductance functions extracted under different feeding amplitude ratios at each port

    图  6  使用不同方法设计的天线的输入端口的反射系数

    Figure  6.  Reflection coefficients at the input ports of antennas designed using different methods

    图  7  使用不同方法设计的天线的二维归一化辐射方向图

    Figure  7.  2D normalized radiation patterns of antennas designed using different methods

    图  8  使用不同方法设计的天线的三维辐射方向图

    Figure  8.  3D radiation patterns of antennas designed using different methods

    图  9  使用不同方法设计的天线的缝隙周围电场分布图

    Figure  9.  Electric field distribution around the slot of antennas designed using different methods

    表  1  图6-9中三种天线的一些电性能参数对比

    Table  1.   Some electrical parameters of the three antennas in Figs.6-9

    design method H-plane SLL/dB E-plane SLL/dB E/(V/m) gain/dBi RCR/dB FTBR/dB
    Stevenson formula −31.1 −41.5 3423 25.5 −11~−8.7 37.8
    conductance function in Fig.5(a) −30.8 −40.1 3484 25.4 −26.8~−10.4 37.5
    conductance function in Fig.5(b) −30.2 −39.9 3458 25.3 −37.2~−27.7 37.5
    下载: 导出CSV

    表  2  本文设计的高功率波导缝隙阵天线与已有工作的对比

    Table  2.   Comparison of the waveguide slot array antenna designed in this paper with existing works

    Ref. f/GHz S/λ2 gain/dBi AE/% SLL/dB type of antenna
    [27] 3 8.46×4.3 24.6 63 −15 waveguide slot antenna
    [36] 5.8 19.1×11.2 29.2 30.9 −10 waveguide slot antenna
    [37] 3.17 4.4×0.36 9.91 50.25 −10 waveguide slot antenna
    [38] 3.95 6.8×6.3 24.6 53.33 −22 waveguide slot antenna
    [39] 3.4 5.7×0.8 14.5 48.4 −15 waveguide slot antenna
    this paper 2.458 7.4×7.26 25.3 50 −30.2 waveguide slot antenna
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-07-20
  • 修回日期:  2024-10-12
  • 录用日期:  2024-10-13
  • 网络出版日期:  2024-12-14

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