一种立体结构MIMO移动终端天线的设计  

Design of a three-dimensional structure MIMO mobile terminal antenna

作　　者：王友保[1] 饶跃飞 

机构地区：[1]南京信息工程大学应用电磁学研究中心,南京210044

出　　处：《中国科技论文》2017年第2期121-125,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(2013g067)

摘　　要：设计了1种工作在LTE1900、LTE2300、LTE2600频段的六单元MIMO移动终端天线。采用倒F天线作为天线单元,并将其弯折成三维结构覆盖于尺寸为10mm×10mm×3mm的FR4介质方块上。通过优化天线单元尺寸、地板结构和天线单元的位置,使得天线带宽为1.85~1.96GHz,2.3~2.7GHz(VSWR<2),并且实现了带宽内-10dB的隔离度。同时天线的增益大于1.5dB、辐射效率大于65%、相关系数远远小于0.5。A six-element multiple-input multiple-output（MIMO）mobile terminal antenna was proposed to meet LTE1900,LTE2300,LTE2600 bands.An inverted-F antenna was used as the antenna element,which was folded on the FR4 cube of the dimensions 10mm×10mm×3mm.By optimizing the size of antenna elements,the structure of ground plane and the location of antenna units,the antenna with band within 1.85-1.96 GHz,2.3-2.7GHz is achieved,and the mutual coupling between the elements are less than-10 dB.At the same time,antenna gains are greater than 1.5dB,radiation efficiencies are higher than65%,and coefficients are far less than 0.5.

关 键 词：电磁场与微波技术 多输入多输出天线 隔离度 倒F天线 

分 类 号：TN828.6[电子电信—信息与通信工程]