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一种高功率折线栅极化转换天线罩的设计

周哲 李相强 刘庆想 张健穹

周哲, 李相强, 刘庆想, 等. 一种高功率折线栅极化转换天线罩的设计[J]. 强激光与粒子束, 2018, 30: 053005. doi: 10.11884/HPLPB201830.170448
引用本文: 周哲, 李相强, 刘庆想, 等. 一种高功率折线栅极化转换天线罩的设计[J]. 强激光与粒子束, 2018, 30: 053005. doi: 10.11884/HPLPB201830.170448
Zhou Zhe, Li Xiangqiang, Liu Qingxiang, et al. Design of a high power radome with meander-line polarizer[J]. High Power Laser and Particle Beams, 2018, 30: 053005. doi: 10.11884/HPLPB201830.170448
Citation: Zhou Zhe, Li Xiangqiang, Liu Qingxiang, et al. Design of a high power radome with meander-line polarizer[J]. High Power Laser and Particle Beams, 2018, 30: 053005. doi: 10.11884/HPLPB201830.170448

一种高功率折线栅极化转换天线罩的设计

doi: 10.11884/HPLPB201830.170448
详细信息
    作者简介:

    周哲(1990-),男,硕士研究生,主要从事高功率微波技术研究;zhouzhe_i@163.com

    通讯作者:

    李相强(1982-),男,教授,博士生导师,主要从事高功率微波技术研究;xiangqiang_li@163.com

  • 中图分类号: O521.3;TN82

Design of a high power radome with meander-line polarizer

  • 摘要: 设计了一种用于高功率径向线螺旋阵列天线的极化转换天线罩。利用三层介质层包夹双层金属折线,形成密封的埋入式折线栅结构。在实现圆极化与线极化相互转换的同时,又避免金属与空气接触,可以提高功率容量。分析了埋入式折线栅单元各参数的影响,并优化单元参数,以此构建埋入式折线栅极化转换天线罩并加载至X波段高功率径向线螺旋阵列天线,分析了天线的基本性能以及功率容量。仿真结果显示:天线匹配良好,增益和波束宽度变化很小,中心频率轴比由1.16 dB变为40 dB,圆极化波转换为线极化波效果良好;经初步分析,极化转换天线罩的功率容量为121 MW,实现了极化转换天线罩的高功率应用。
  • 图  1  单层介质极化转换天线罩和埋入式折线栅极化转换天线罩结构

    Figure  1.  Structure of single-layer dielectric radome and embedded meander-line radome with polarization conversion

    图  2  埋入式折线栅极化转换天线罩等效电路

    Figure  2.  Equivalent circuit of embedded meander-line radome with polarization conversion

    图  3  单元模型

    Figure  3.  Model of element

    图  4  参数扫描分析

    Figure  4.  Parametric analysis

    图  5  单元优化结果

    Figure  5.  Optimization results of element

    图  6  埋入式极化转换天线罩加载至高功率径向线螺旋阵列天线剖视图

    Figure  6.  Section view of embedded radome with polarization conversion loaded to the high power radial line spiral array antenna

    图  7  天线基本性能

    Figure  7.  Antenna performance

    图  8  单层介质极化转换天线罩与埋入式极化转换天线罩电场强度分布

    Figure  8.  Electric field of single-layer of dielectric radome and embedded meander-line radome with polarization conversion

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出版历程
  • 收稿日期:  2017-11-09
  • 修回日期:  2017-12-28
  • 刊出日期:  2018-05-15

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