基于超表面的宽波瓣阵列天线  

A Wide-lobe Array Antennas Based on Metasurface

作　　者：于瑞涛 符道临 梁雄帆 王佳毅 陈展野 熊伟 陈珲 YU Ruitao;FU Daolin;LIANG Xiongfan;WANG Jiayi;CHEN Zhanye;XIONG Wei;CHEN Hui(Hangzhou Qiantang Advanced Institute of Information,Hangzhou Zhejiang 310018,China;Jiangsu Cyberspace Science and Technology Co.,Ltd,Nanjing Jiangsu 211113,China;Hangzhou Qiantang Information Co.,Ltd,Hangzhou Zhejiang 310018,China;School of Electronic Engineering,Xidian University,Xi'an Shaanxi 710071,China;School of Information Science and Engineering,Southeast University,Nanjing 210096 China)

机构地区：[1]杭州市钱塘区信息高等研究院,浙江杭州310018 [2]江苏赛博空间科学技术有限公司,江苏南京211113 [3]杭州钱塘信息有限公司,浙江杭州310018 [4]西安电子科技大学电子工程学院,陕西西安710071 [5]东南大学毫米波全国重点实验室,江苏南京210096

出　　处：《海军航空大学学报》2024年第6期765-772,共8页Journal of Naval Aviation University

基　　金：国家自然科学基金(U2341206、92371205)。

摘　　要：针对智能电子系统对天线宽波瓣、宽角扫描和低剖面的需求,提出了一种工作在Ka频段的一维超表面相控阵天线。该天线辐射单元主要采用电磁偶极子形式,在电磁偶极子单元周围围绕一圈接地的方环,以此来改善天线H面的耦合。通过在天线辐射单元两侧各加载两列AMC结构,极大地展宽了天线辐射单元的E面波束宽度。与传统天线相比,所设计的天线具有波束宽度宽、剖面低、宽带扫角等优点。天线原型由低剖面阵列、驱动模块及铝合金支撑结构等组成,其中辐射阵列由16个单元组成线阵。天线辐射单元在2个GHz的带宽内反射系数小于-10dB,E面方向图具有110°的3dB波束宽度,天线阵列在±60°扫描角度内具有良好的扫描特性。In order to meet the requirements of intelligent electronic system for wide-lobe,wide angle scanning and low profile antennas,a one-dimensional phased array antenna working in Ka-band is proposed.The antenna radiation unit mainly adopts the form of electromagnetic dipole,and a grounded square ring is surrounded the electronic dipole to improve the coupling effect of the H-plane,and the E-plane beamwidth of the antenna radiation unit is greatly broadened by loading two columns of AMC structure on both sides of the antenna radiation unit.Compared with the previous antenna,the antenna has the advantages of wide beam width,low profile and broadband sweeping angle.The antenna prototype is composed of a low-profile array,a driver module and an aluminum alloy support structure,among which the radiation array is composed of 16 units to form a linear array.The reflection coefficient of the antenna radiating unit is less than-10 dB in the bandwidth of 2 GHz,the E-plane pattern has a 3 dB beamwidth of 110°,and the antenna array has good scanning characteristics in the±60°scanning angle.

关 键 词：超表面 相控阵 宽角扫描 宽波瓣 低剖面 电磁偶极子 

分 类 号：TN82[电子电信—信息与通信工程]