【作者】 张紫宇； 栗曦； 杨林；

【Author】 Zhang Ziyu;Li Xi;Yang Lin;Xidian University;

【机构】 西安电子科技大学；

【摘要】 本文设计了一款工作在10.6 GHz～15.6 GHz的宽带宽角扫描双圆极化相控阵天线。天线单元采用多层介质加载的微带天线,同时加载3 dB分支线耦合器实现利用两个独立的馈点控制左旋圆极化与右旋圆极化的切换。仿真结果表明:该双圆极化阵列在10.6GHz～15.6 GHz带宽内可以覆盖±45°的波束扫描范围。本文所设计的天线单元具有宽频带,极化可变,易于集成等特点,可作为相控阵天线的辐射单元。更多还原

【Abstract】 In this paper,a wideband wide-angle scanning dual circularly polarized phased array antenna operating from 10.6 GHz to 15.6 GHz is designed.The antenna unit adopts a microstrip antenna with multi-layer dielectric loading,and simultaneously loads a 3 dB branch line coupler to achieve the switching between left-hand circular polarization and right-hand circular polarization controlled by two independent feed points.The simulation results show that the dual circularly polarized array can cover a beam scanning range of ±45° within the bandwidth of 10.6 GHz to 15.6 GHz.The antenna element designed in this paper features a wide frequency band,variable polarization,and easy integration,and can be used as the radiation element of phased array antennas.更多还原