| 具有高隔离度的双陷波超宽带多入多出天线 |
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| 引用本文： | 王丽黎,杜忠红,杨海龙,韩雪妮,席晓莉.具有高隔离度的双陷波超宽带多入多出天线[J].强激光与粒子束,2020,32(6):063007-1-063007-7. |
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| 作者姓名： | 王丽黎 杜忠红 杨海龙 韩雪妮 席晓莉 |
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| 作者单位： | 西安理工大学自动化与信息工程学院,西安 710048;西安理工大学自动化与信息工程学院,西安 710048;西安理工大学自动化与信息工程学院,西安 710048;西安理工大学自动化与信息工程学院,西安 710048;西安理工大学自动化与信息工程学院,西安 710048 |
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| 基金项目： | 国防预研基金项目（6140450010302）；西安市科技计划项目（2017080GG/RC043（XALG014） |
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| 摘 要： | 提出了一款具有高隔离度的双陷波超宽带多入多出(UWB MIMO)天线。该天线由两个相同的半切超宽带天线单元倒置构成。通过在天线底板刻蚀栅栏型缺陷地解耦结构,使该MIMO天线的隔离度提高至25 dB。此外,在天线半圆形辐射贴片上刻蚀两个方向相反的"L"型缝隙,实现了双陷波的功能,分别抑制了802.16无线城域网WiMAX(3.2~3.7 GHz)和WLAN(5.15~5.85 GHz)信号对天线系统的干扰。实验结果表明,该天线在3~11 GHz工作带宽内的隔离度大于25 dB,包络相关系数(ECC)小于0.004;第一个陷波频段为3.0~3.7 GHz,第二个陷波频段为5.1~5.85 GHz,有效抑制了WiMAX和WLAN的信号干扰。
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| 关 键 词： | 超宽带 MIMO天线 高隔离度 栅栏型解耦结构 双陷波天线 |
| 收稿时间： | 2019-12-02 |
Dual band-notch ultra-wideband multiple-input multiple-output antenna with high isolation |
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| Wang Lili,Du Zhonghong,Yang Hailong,Han Xueni,Xi Xiaoli.Dual band-notch ultra-wideband multiple-input multiple-output antenna with high isolation[J].High Power Laser and Particle Beams,2020,32(6):063007-1-063007-7. |
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| Authors: | Wang Lili Du Zhonghong Yang Hailong Han Xueni Xi Xiaoli |
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| Affiliation: | School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China |
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| Abstract: | This paper presents an ultra-wideband(UWB)multiple-input multiple-output(MIMO)antenna,which has high isolation and double band-notch in the UWB band.The MIMO antenna consists of two half-cutting UWB antenna units which have high isolation(S21>25 dB)because of the use of a novel fence-type decoupling structure on the bottom plate of the antenna.In addition,two"L"shaped slots are etched on the antenna radiation patch,and the characteristic of the double band-notch are realized.The interference of the 802.16 WiMAX(3.2-3.7 GHz)and the WLAN(5.15-5.85 GHz)signal to the antenna system is suppressed,respectively.The experimental results show that the antenna has high isolation and a low envelope correlation coefficient(ECC<0.004)in the UWB band.The first notch band is 3.0-3.7 GHz and the second notch band is 5.1-5.8 GHz,which effectively suppresses the interference of WiMAX and WLAN signals. |
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| Keywords: | ultra-wideband multiple-input multiple-output antenna high isolation fence-type decoupling structure dual band-notch antenna |
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