【作者】 朱俊杰； 李雪； 郭莹； 顾长青； 陈新蕾；

【Author】 ZHU Jun Jie;Li Xue;GUO Ying;GU Chang Qing;CHEN Xin Lei;College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics;

【机构】 南京航空航天大学电子信息工程学院；

【摘要】 本文我们根据理论分析,优化设计了基于紧耦合效应的用于实现紧耦合偶极子阵列(Tightly Coupled Dipole Array,TCDA)的周期辐射单元,拥有宽角扫描和4.5:1的阻抗带宽特性。此外,我们提出了一个金属巴伦馈电结构对偶极子单元进行馈电。最后对设计的双极化天线单元进行阻抗带宽、宽角扫描特性的分析,仿真结果显示此天线VSWR小于3的情况下带宽为1.3GHz到8.8GHz,E-plane、H-plane扫描角分别达到30°和45°。更多还原

【Abstract】 In this paper, based on the theoretical analysis, optimal design of the periodic radiating element for the Tightly Coupled Dipole Array(TCDA)based on mutual coupling effect have been given in great detail, which show a large scanning angle and a broad bandwidth over 4.5:1. Besides, we proposed a metal Balun feeding structure to feed the dipole unit cell. A prototype was simulated. Results show that a bandwidth more than 6.77:1, with VSWR<3 from 1.3GHz to 8.8GHz, was achieved. The angle of scanning ranges up to 30°in E-plane while 45°in H-plane.更多还原