应用于WLAN的双频段MIMO天线设计

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• 英文论文题名：Dual-band MIMO Antenna Design for WLAN Applications
• 论文作者：王彬彬 ; 姜文 ; 龚书喜
• 英文论文作者：WANG Bin-bin ; JIANG Wen ; GONG Shu-xi ; Key Laboratory of Antenna and Microwave Technology ; Xi Dian University
• 年：2016
• 作者机构：西安电子科技大学天线与微波技术重点实验室;
• 论文关键词：MIMO天线 ; 双频段 ; 弯折线 ; 中和线 ; 分集增益
• 英文论文关键词：MIMO antenna ; dual-band ; meandered line ; neutralization line ; diversity gain
• 会议召开时间：2016-08-17
• 会议录名称：2016年全国军事微波、太赫兹、电磁兼容技术学术会议论文集
• 语种：中文
• 分类号：TN828;TN925.93
• 学会代码：WBXB
• 会议名称：2016年全国军事微波、太赫兹、电磁兼容技术学术会议
• 会议地点：中国陕西西安
• 主办单位：中国电子学会微波分会、天线与微波技术重点实验室
• 学会名称：《微波学报》编辑部
• 页数：4
• 文件大小：646k
• 原文格式：D
• 会议级别：全国

摘要

本文设计了一款能覆盖WLAN的2.4-GHz和5.8-GHz频段MIMO天线。该MIMO天线单元由两根弯折线结构的天线组成,天线单元之间的距离仅为4mm。在2.4-GHz低频段,在有限的空间内利用天线的布局获得了良好的隔离度;在5.8-GHz高频段,引入中和线技术提高了端口之间的隔离度,获得最大约29.5d B隔离度改善。仿真结果表明,该天线在工作频段内具有趋于全向辐射的特性,并且通过S参数计算出来的包络相关系数的值远小于0.01,说明该MIMO天线具有较好的分集增益。
In this letter,a dual-band multiple-input-multriple-out(MIMO) antenna is designed to cover the WLAN 2.4-and 5.8-GHz bands.The MIMO antenna element is composed of two meandered lines, and the distance between the antenna elements only is 4mm. In the 2.4-GHz low frequency, we make use of layouts to get a good isolation in the limited space of the antenna; in the 5.8-GHz high frequency band, and the introduction of the Neutralization line technology improves the isolation between the ports, we received about 29.5d B isolation degree. The simulation results show that the antenna has an omnidirectional radiation characteristic tends within the operating frequency band, and the envelope correlation coefficient calculated from S-parameter values is much smaller than 0.01, indicating that the MIMO antenna has better diversity gain.

引文

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