一种非谐振宽带高增益部分反射面天线  

A Non-Resonant High-Gain Wideband Partially Reflective Surface Antenna

作　　者：王辉祥 WANG Huixiang(College of Physics and Information Engineering,Fuzhou University,Fuzhou 350000,China)

机构地区：[1]福州大学物理与信息工程学院,福建福州350000

出　　处：《电视技术》2023年第4期59-63,67,共6页Video Engineering

基　　金：福建省高校产学合作科技重大项目(2022H6018)。

摘　　要：介绍一种非谐振的宽带高增益部分反射面天线。该天线由一个线-圆极化转换超表面、一个宽带耦合馈电天线和金属地组成。部分反射面和金属地板构成的腔体处于非谐振状态,通过旋转部分反射面上层的圆极化贴片对泄露的电磁波进行相位校正,可实现高增益和宽带圆极化的性能。仿真结果表明,天线3 dB轴比带宽和3 dB增益带宽分别为10.37~13.52 GHz(26.37%),11.21~12.99 GHz(14.71%),同时,天线在12.4 GHz实现20.23 dBic的峰值增益,口径效率为34.11%。In this paper,a non-resonant high-gain wideband circularly polarized Partially Reflective Surface(PRS)antenna is proposed.The antenna consists of a PRS with linear-to-circular polarization conversion,a broadband coupling feed antenna and a PEC ground.The cavity composed of the PRS and the PEC ground is in a non-resonant state,and the phase correction of the leaked electromagnetic wave can be carried out by rotating the circular polarization patch on the top layer of the PRS,which can achieve the performance of high-gain and broadband circular polarization.The simulation results show that the 3 dB axial ratio bandwidth and the 3 dB gain bandwidth of the antenna are 10.37~13.52 GHz(26.37%)and 11.21~12.99 GHz(14.71%)respectively,and the antenna reaches a peak gain of 20.23 dBic at 12.4 GHz,with an aperture efficiency of 34.11%.

关 键 词：超表面 宽带圆极化 非谐振 部分反射面天线 

分 类 号：TN82[电子电信—信息与通信工程]