一种应用于WLAN的2×2 MIMO定向天线设计  

Design of A Novel Directional 2×2 MIMO Antenna for WLAN Application

作　　者：权威 闫姝 权建军 QUAN Wei;YAN Shu;QUAN Jian-jun(Electric&Electronic Engineering School,Lanzhou Petrochemical University of Vocational Technology,Lanzhou 730060,China)

机构地区：[1]兰州石化职业技术大学电子电气工程学院,甘肃兰州730060

出　　处：《兰州石化职业技术大学学报》2023年第3期18-22,共5页Journal of Lanzhou Petrochemical University of Vocational Technology

摘　　要：提出并设计了一种工作在WLAN 5GHz频段的2×2 MIMO定向天线,该天线由FR4 PCB介质基板、4个环形单级子天线阵元和2个T型一分二微带功分器组成,天线整体结构尺寸为70mm×70mm×9mm。仿真研究表明,通过使用T型一分二微带功分器对环形单级子天线阵元进行馈电,该天线在主要工作频带内输入端回波损耗小于-10dB,两个天线端口之间的隔离度大于20dB,且天线增益达到10.5dBi。此2×2 MIMO定向天线具有增益高、尺寸小、易于加工集成等特点,具有较好的应用前景。In this paper,a novel directional 2×2 MIMO antenna operating in 5GHz is presented and designed.The antenna is composed of an FR4 PCB substrate,four ring monopole antenna,and two T-shaped one-to-two microstrip power splitters.The size of the antenna is 70mm×70mm×9mm.The numerical simulation results show?that the antenna has an input return loss less than-10 dB,the isolation between two antenna ports is more than 20dB,and the antenna gain reaches 10.5 dBi.The directional 2×2 MIMO antenna has the characteristics of high gain,small size,and easy processing with bright application future.

关 键 词：MIMO 定向天线 微带功分器 

分 类 号：TN827[电子电信—信息与通信工程]