一种超宽带双极化阵列天线的设计  

Design of an ultra-wideband dual-polarized array antenna

作　　者：唐赢 梁仙灵[1] 王堃[1] 耿军平[1] 金荣洪[1] TANG Ying;LIANG Xianling;WANG Kun;GENG Junping;JIN Ronghong(Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《电波科学学报》2021年第1期20-26,35,共8页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61801447)。

摘　　要：为满足超宽带无线通信应用需求,研究了一种超宽带双极化强耦合阵列天线.阵元由两对相连印刷偶极子正交构成,结合Marchand巴伦与Wilkinson功分器构建的馈电网络,实现了平衡馈电、阻抗变换和带内共模谐振抑制等技术.实验与仿真结果表明,该阵列天线可实现阻抗带宽1.5~4.0 GHz,E面波束扫描范围±60°,H面波束扫描范围±50°,并且天线结构简单,适合双极化宽角扫描相控阵天线系统的应用.In order to meet the requirements of ultra-wideband wireless communication system applications,this paper studies an ultra-wideband dual-polarization strongly-coupled array antenna.The array element is composed of two pairs of connected printed dipoles orthogonally.The feed network is constructed by the Marchand Balun and the Wilkinson power splitter and realizes the balanced feed,the impedance transformation and common mode resonance suppression.Simulated and measured results show that the proposed antenna achieves an impedance bandwidth of 1.5 GHz to 4.0 GHz,and an E-plane beam scanning range±60°,H-plane beam scanning range±50°,and the antenna structure is simple,and is suitable for the applications of dual-polarization wide-angle scanning phased array antenna system.

关 键 词：强耦合阵列 相连印刷偶极子 超宽带 宽角扫描 双极化 

分 类 号：TN821.1[电子电信—信息与通信工程]