摘要
为满足无线局域网(WLAN)性能需要,设计了一种利用Y型地板枝节和L型地板缝隙结构来提高天线隔离度的双频多输入多输出(MIMO)天线。天线基本结构为印刷单极子天线,馈电方式为微带线馈电。通过在L型单极子天线结构上加载一条L型辐射枝节,实现天线的双频特性,天线单元间结构相同且对称。仿真结果表明:天线在S_(11)≤-10 dB时,工作频段分别为2.37~2.5 GHz和4.93~6.09 GHz。在低频段时,天线隔离度高于30.5 dB;在高频段,天线隔离度高于22 dB。其ECC系数在工作频段内远小于0.01,具有良好的分集增益。此外天线整体辐射特性较好,适用于WLAN无线通信系统。
In order to meet the performance requirements of wireless local area network(WLAN),a dual frequency multiple-input multiple-output(MIMO)antenna using Y-type floor branch and L-type floor slot structure is designed to improve the antenna isolation.The antenna unit is in the form of printed monopole antenna,which is fed by microstrip line.The structure of the antenna is the same and symmetrical.The dual frequency characteristics of the L-type monopole antenna are realized by loading a L-type floor parasitic element on the structure.The simulation results show that the working frequency of the antenna is 2.37~2.5 GHz and 4.93~6.09 GHz when S_(11)≤-10 dB.In the low frequency band,the antenna isolation is higher than 30.5 db,in the high frequency band,the antenna isolation is higher than 22 dB,and its ECC coefficient is far less than 0.01 in the working frequency band,which has a good diversity gain.In addition,the overall radiation characteristics of the antenna are good,which is suitable for WLAN wireless communication system.
作者
张宝军
郭涛
陈曦
苏展飞
ZHANG Baojun;GUO Tao;CHEN Xi;SU Zhanfei(College of Electronic Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China)
出处
《传感器与微系统》
CSCD
北大核心
2022年第1期96-100,共5页
Transducer and Microsystem Technologies
关键词
多输入多输出天线
高隔离度
双频段
无线局域网
分集增益
multiple-input multiple-output(MIMO)antenna
high isolation
dual band
wireless local area network(WLAN)
diversity gain
