一款应用于5G的圆极化微带相控阵列天线设计  

Design of a Circularly Polarized Microstrip Phased Array for 5G Applications

作　　者：倪涛 陈官韬 伊良镛 

机构地区：[1]西安导航技术研究所,陕西 西安 [2]西安电子科技大学电子工程学院,陕西 西安

出　　处：《天线学报》2023年第4期49-56,共8页Journal of Antennas

摘　　要：本文提出一种用于5G通信的圆极化微带相控阵列天线。首先,提出并设计了一款双馈点的圆极化微带天线单元,在无限周期阵中的仿真结果表明,该阵列单元在两个主平面实现 ± 30度的扫描,在3.4~3.7 GHz频段内的反射系数S11 < −10和轴比AR < 3.5 dB。最后,设计了一款7 × 7圆极化微带阵列天线,仿真结果表明,该阵列天线工作在3.4~3.7 GHz频段,在扫描范围内的轴比均小于3 dB,且在扫描范围内增益变化平稳,实现了良好的圆极化扫描特性。This article proposes a circularly polarized microstrip phased array antenna for 5G communication. Firstly, a doubly-fed circularly polarized microstrip antenna unit was proposed and designed. Sim-ulation results in an infinite periodic array showed that the array unit achieved ± 30 degree scan-ning on two main planes, with a reflection coefficient of S11 < −10 dB and the axial ratio of AR < 3.5 dB in the 3.4~3.7 GHz frequency band. Finally, a 7 × 7 microstrip array antenna was designed, and the simulation results showed that the array antenna operated in the 3.4~3.7 GHz frequency band. The axial ratio within the scanning range is less than 3dB, and the gain changes smoothly within the scanning range, achieving good circularly polarized scanning characteristics.

关 键 词：微带天线 圆极化 相控阵 

分 类 号：TN8[电子电信—信息与通信工程]