曹祥玉,,
高军,
兰俊祥,
丛丽丽
空军工程大学信息与导航学院? ?西安? ?710077
基金项目:国家自然科学基金(61271100, 61471389, 61501494), 陕西省自然科学基金(2017JM6025), 博士后创新人才支持计划(BX20180375), 陕西省高校科协青年人才托举计划资助项目(20170107)
详细信息
作者简介:刘涛：男，1995年生，博士生，研究方向为天线设计、人工电磁材料设计等
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
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
兰俊祥：男，1994年生，博士生，研究方向为磁电偶极子天线、超宽带吸波体等
丛丽丽：女，1991年生，博士生，研究方向为超材料设计，天线阵雷达散射截面减缩等
通讯作者:曹祥玉 gigi9694@163.com
中图分类号:TN820计量
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被引次数:0
出版历程
收稿日期:2018-09-27
修回日期:2019-02-03
网络出版日期:2019-03-14
刊出日期:2019-09-10
Design of Wideband Matasurface Antenna Array with Low Scattering Characteristics
Tao LIU,Xiangyu CAO,,
Jun GAO,
Junxiang LAN,
Lili CONG
Information and Navigation College, Air Force Engineering University, Xi’an 710077, China
Funds:The National Natural Science Foundation of China (61271100, 61471389, 61501494), The Natural Science Foundational of Shaanxi Province (2017JM6025), The Postdoctoral Innovative Talents Support Program of China (BX20180375), The Young Talent fund of University Association for Science and Technology in Shaanxi Province (20170107)
摘要
摘要:该文利用电磁超表面与微带天线的结构高度相似性，设计了2种辐射特性几乎一致且具有反射相位差异的超表面天线，通过将2种天线单元进行棋盘布阵，在x极化波和y极化波照射下分别利用相位相消及匹配负载吸收实现了天线阵带内散射能量的抑制。实测与仿真结果表明：该超表面天线工作于6.0～8.5 GHz。x极化波垂直入射时天线单站RCS减缩6 dB带宽为6.2～10.5 GHz，最大减缩量达21.07 dB。y极化波垂直入射时天线的带内RCS减缩依然能达到3 dB以上。且实测与仿真结果吻合良好。该设计方法为实现天线阵带内RCS减缩提供了新的设计思路。
关键词:阵列天线/
超表面/
雷达散射截面/
宽频
Abstract:A broadband metasurface antenna array with wideband low Radar Cross Section (RCS) is proposed. Two kind metasurface antennas with nearly the same radiation performance are designed and fabricated in a chessboard configuration. For x -polarized incidence, the reflected energy from the two elements is dissipated based on destructive phase difference. For y -polarized incidence, the incident energy is absorbed by matching load. By this means, inherent wideband low RCS is achieved for both polarizations without redundant structures. The proposed antenna array is fabricated and measured. Simulated and measured results show that the working frequency band is 6.0～8.5 GHz. Meanwhile under x polarization the antenna monostatic RCS is reduced significantly 6 dB RCS reduction is achieved over the range of 6.2～10.5 GHz and the peak reduction is up to 21.07 dB. Under y polarization the antenna monostatic RCS is reduced over 3 dB RCS reduction in bandwidth. Both measured and simulated results verify the proposed antenna array is characterized with wideband low-RCS without degrading the radiation performance.
Key words:Antenna array/
Metasurface/
Radar Cross Section (RCS)/
Wideband
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