小型化超宽带多输入多输出天线的设计  

Design of Miniaturized Ultra-wideband Multiple-input Multiple-output Antenna

作　　者：荀一峰 韩丽萍[1] XUN Yifeng;HAN Liping(School of Physics and Electronic Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2023年第3期658-663,共6页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(62071282);山西省自然科学基金(201901D111026)。

摘　　要：本文提出了一种小型化超宽带多输入多输出天线。该天线由两个加载C型枝节的小型化超宽带单极子对称放置组成。阶梯馈线两侧刻蚀矩形缝隙实现天线单元的小型化。地板刻蚀矩形槽,并加载T型枝节和弯折线结构,改善天线单元间的隔离度。天线尺寸为25 mm×33 mm×1 mm(0.34λ_(g)×0.45λ_(g)×0.01λ_(g),λ_(g)为低频时天线的波长)。仿真和实测结果表明,该天线工作在2.5 GHz~10.8 GHz,隔离度大于17 dB。A miniaturized ultra-wideband(UWB)multiple-input multiple-output(MIMO)antenna is proposed in this paper.The antenna consists of two miniaturized UWB monopoles loaded with C-shaped stub placed symmetrically.The miniaturization of antenna is achieved by etching two rectangular slots besides the stepped feed-line.The isolation is improved by etching a rectangular slot on the ground,adding a T-shaped stub and loading a meander-line structure.The size of the antenna is 25 mm×33 mm×1 mm(0.34λ_(g)×0.45λ_(g)×0.01λ_(g),λ_(g) is the wavelength of antenna in the lower frequency).The simulated and measured consequents indicate that the isolation of antenna is more than 17 dB in the operating band from 2.5 GHz-10.8 GHz.

关 键 词：小型化 超宽带 多输入多输出 曲流技术 

分 类 号：TN822.8[电子电信—信息与通信工程]