高隔离度滤波MIMO天线研究  

Study on high isolation of mimo antenna through filtering technology

作　　者：付元旭 梁志茂[1] FU Yuan-xu;LIANG Zhi-mao(School of Electrical and Information Engineering,Yunnan Minzu University,Kunming 650500,China)

机构地区：[1]云南民族大学电气信息工程学院,云南昆明650500

出　　处：《云南民族大学学报（自然科学版）》2022年第5期616-620,共5页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：云南省教育厅科学研究基金(2019J0675)。

摘　　要：随着5G通信的发展,MIMO(multi-input-multi-output)天线成为5G通信的研究重点方向.但MIMO中存在的问题就是相邻天线之间的耦合问题,这样的耦合会干扰相邻天线的接收及发送.文中提出利用滤波理论应用在MIMO天线之间的去耦的新方法,提高MIMO天线之间的隔离度,隔离度可以达到-40 dB,辐射增益为7.5 dBi.With the development of 5 G communication, MIMO(multi-input-multi-output) antenna has become the focus of 5 G communication research. However, the problem in MIMO is the coupling between the independent antennas, which will interfere with the receiving and transmitting of the independent antennas. In this paper, the decoupling between MIMO antennas is proposed by using filtering theory to improve the isolation degree between MIMO antennas. The isolation degree can reach-40 dB(4.2—5 GHz, 6.1—6.7 GHz), and the radiation gain is 6.5 dBi.

关 键 词：MIMO天线 滤波 5G通信 去耦 

分 类 号：O441[理学—电磁学]