摘要
小型化设备中,MIMO系统十分需要紧凑型天线阵列。然而,其带来的紧耦合效应,大大降低了系统性能。为了解决这个问题,引入解耦电路和匹配电路。首先给出了基于多端口共轭匹配的解耦匹配网络设计的理论说明,然后设计了一款解耦匹配MIMO阵列天线,其谐振频率为2.43GHz,最后通过HFSS软件对所设计的天线进行了仿真。仿真结果显示,所设计的天线很好地解决了WiFi频段的耦合和谐振点偏移问题。
Among miniaturized devices,MIMO systems require a compact antenna array.However,the tight coupling effect it brings is greatly reduced system performance.To solve this problem,a decoupling circuit and a matching circuit are introduced.Firstly,the theoretical description of decoupling matching network design based on multi-port conjugate matching is given.Then a decoupled matching MIMO array antenna is designed with a resonant frequency of 2.43 GHz.Finally,the designed antenna is implemented by HFSS software.The simulation results show that the coupling and resonance point offset of the WiFi band are well solved.
作者
李方华
潘进勇
Li Fanghua;Pan Jinyong(Department of Computer and Information,Hohai University,Nanjing 211100,China)
出处
《国外电子测量技术》
2018年第11期83-86,共4页
Foreign Electronic Measurement Technology
关键词
MIMO
紧耦合
解耦
匹配
MIMO
tight coupling
decoupling
matching
