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适用于5G通信的宽带毫米波MIMO天线的设计
引用本文:严 冬 杭 锐 郭琪富 郭保仓 程 威. 适用于5G通信的宽带毫米波MIMO天线的设计[J]. 微波学报, 2021, 37(2): 37-41
作者姓名:严 冬 杭 锐 郭琪富 郭保仓 程 威
作者单位:重庆邮电大学 工业物联网与网络化控制教育部重点实验室,重庆 400065
基金项目:重庆市供需融合的“互联网+智慧检测”服务模式创新与应用示范基金(cstc2018jszx-cyzdX0078)
摘    要:针对当前5G通信要求的高速率,提出了一种加载水平条形枝节和蝶形寄生单元的倒L型偶极子宽带MIMO天线。该天线以具有不完全地板的倒L型偶极子天线为辐射主体,加载水平条形枝节有效拓展了天线带宽,在天线上端加载一个蝶形寄生单元,有效提升了天线增益;最后将两个天线单元正交摆放,得到了MIMO天线的最终结构。对天线进行仿真与优化,最终结果表明,天线相对带宽达到40.9%(23.1~35 GHz),工作频带内的隔离度均小于-19 dB,带内增益为5.3~7.13 dBi。与引文其它天线相比,目标天线尺寸较小,具有较宽的频带和较高的增益,同时具有良好的隔离度和定向性。天线实测结果与仿真结果基本吻合,验证了其研究与应用价值。

关 键 词:倒L型  偶极子  多输入多输出  隔离度  增益  定向性

Design of Broadband Millimeter Wave MIMO Antenna Suitablefor 5G Communication
YAN Dong,HANG Rui,GUO Qi-fu,GUO Bao-cang,CHENG Wei. Design of Broadband Millimeter Wave MIMO Antenna Suitablefor 5G Communication[J]. Journal of Microwaves, 2021, 37(2): 37-41
Authors:YAN Dong  HANG Rui  GUO Qi-fu  GUO Bao-cang  CHENG Wei
Affiliation:Key Laboratory of Network Control & Intelligent Instrument, Ministry of Education, Chongqing University of Posts andTelecommunications, Chongqing 400065, China
Abstract:Aiming at the high speed required by the current 5G communication, an inverted L-shaped dipole broadbandMIMO antenna loaded with horizontal strip branches and butterfly parasitic elements is proposed. The antenna uses aninverted L-shaped dipole antenna with an incomplete floor as the radiation body, and loading horizontal strip branches effectivelyexpands the antenna bandwidth, loading a butterfly parasitic element on the upper end of the antenna effectively improvesthe antenna gain; Through simulation and optimization of the antenna, the final results show that the relative bandwidthof the antenna reaches 40. 9% (23. 1-35 GHz), the isolation in the operating band is less than -19 dB, and the inbandgain is 5. 3-7. 13 dBi. Compared with other antennas in the reference, the target antenna has a smaller size, wider frequencyband and higher gain, and also has good isolation and directivity. The measured results of the antenna are basicallyconsistent with the simulation, verifying its research and application value.
Keywords:inverted L type   dipole   MIMO   isolation   gain   directivity
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