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基于三种反射型单元共享孔径的新型宽带低RCS反射屏设计

张国雯 高军 曹祥玉 杨欢欢 李思佳

引用本文: 张国雯, 高军, 曹祥玉, 杨欢欢, 李思佳. 基于三种反射型单元共享孔径的新型宽带低RCS反射屏设计[J]. 电子与信息学报, 2019, 41(12): 2925-2931. doi: 10.11999/JEIT181049 shu
Citation:  Guowen ZHANG, Jun GAO, Xiangyu CAO, Huanhuan YANG, Sijia LI. Design of A Novel Broadband Low RCS Array Based on Three Types of Reflective Cell Shared Aperture[J]. Journal of Electronics and Information Technology, 2019, 41(12): 2925-2931. doi: 10.11999/JEIT181049 shu

基于三种反射型单元共享孔径的新型宽带低RCS反射屏设计

    作者简介: 张国雯: 男,1992年生,博士生,研究方向为天线设计、人工电磁材料设计等;
    高军: 男,1962年生,教授,硕士生导师,研究方向为电磁散射理论、电磁超材料、天线设计等;
    曹祥玉: 女,1964年生,教授,博士生导师,研究方向为天线与电磁兼容、电磁超材料、计算电磁学等;
    杨欢欢: 男,1989年生,讲师,研究方向为天线与电磁兼容、电磁超材料、计算电磁学等;
    李思佳: 男,1987年生,副教授,硕士生导师。研究方向为磁电偶极子天线、超宽带吸波体等
    通讯作者: 高军,gjgj9694@163.com
  • 基金项目: 博士后创新人才支持计划(BX20180375),国家自然科学基金(61471389, 61671464, 61701523)

摘要: 该文设计了一种基于3种反射型单元共享孔径的新型宽带低RCS超表面反射屏,与传统人工磁导体反射屏相比,引入一种相量干涉单元,利用新型相位对消关系完成了对传统人工磁导体(AMC)反射屏相位对消频带的拓展。通过将3种反射单元交错排布,合理设计阵列使其满足新型相位对消条件,并进一步优化单元结构参数,实现了阵列RCS缩减和缩减带宽的拓展。在不同极化波垂直入射条件下,新型阵列均有较好的低散射性能。仿真与实测结果表明:在5.2~13.9 GHz范围内后向RCS缩减量达到10 dB以上,相对带宽达到91%,为宽带低RCS反射屏设计提供了新的方法。

English

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  • 图 1  阵列单元结构

    图 2  情况Ⅰ在极坐标下相位关系

    图 3  情况Ⅱ在极坐标下相位关系

    图 4  情况Ⅰ阵列及其单元反射特性曲线

    图 5  情况Ⅱ中3种AMC单元特性

    图 6  新型阵列及其子孔径构成

    图 7  垂直入射时单站RCS缩减情况对比

    图 8  截取阵列部分的电场分布

    图 9  不同频点下散射图

    图 10  斜入射时双站RCS缩减曲线

    图 11  实物制作及测试

    图 12  实测RCS缩减曲线

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文章相关
  • 通讯作者:  高军, gjgj9694@163.com
  • 收稿日期:  2018-11-16
  • 录用日期:  2019-03-18
  • 网络出版日期:  2019-05-20
  • 刊出日期:  2019-12-01
通讯作者: 陈斌, bchen63@163.com
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