【作者】 姬祥昱； 胡俊； 杨瀚林； 胡跃飞； 李黄炎； 王翔；

【Author】 JI Xiangyu;HU Jun;YANG Hanlin;HU Yuefei;LI Huangyan;Wang Xiang;Key Laboratory of Near-Range RF Sensing ICs & Microsystems,Ministry of Education,School of Electronic and Optical Engineering,Nanjing University of Science and Technology;

【机构】 南京理工大学电子工程与光电技术学院,近程射频感知芯片与微系统教育部重点实验室；

【摘要】 为满足5G/6G通信及物联网、智能交通等应用对传输容量与频谱效率的日益增长需求,本文提出并设计了一种基于堆叠贴片结构的可重构涡旋波天线阵列。该阵列采用四个圆极化单元顺序旋转布局,相邻单元间有90°相位差。各单元由环形与圆形金属贴片堆叠构成,正交同轴双端口馈电,通过改变双端口相位差(±90°)实现不同圆极化辐射。通过动态调控阵元馈电相位,可实现涡旋波在+1模态和-1模态之间灵活切换。仿真结果表明,该天线在1.64 GHz工作频率下峰值增益为7.60 dBi。更多还原

【Abstract】 To address the growing demands for transmission capacity and spectral efficiency in applications such as 5G/6G communications,the Internet of Things(IoT),and intelligent transportation systems,this paper proposes and designs a reconfigurable vortex wave antenna array based on a stacked patch structure.The array employs a sequentially rotated arrangement of four circularly polarized elements,with a 90° phase difference between adjacent elements.Each element consists of stacked annular and circular metal patches,fed by an orthogonal coaxial dual-port configuration.By varying the phase difference between the two ports(±90°),different circular polarization states are achieved.Through dynamic control of the feed phases across the array elements,flexible switching between the +1 and-1 vortex wave modes is realized.Simulation results demonstrate that the antenna achieves a peak gain of 7.60 dBi at the operating frequency of 1.64 GHz.更多还原