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Frontiers of Information Technology & Electronic Engineering

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Mutual coupling reduction of multiple antenna systems

Author(s): Jia-yin Guo, Feng Liu, Guo-dong Jing, Lu-yu Zhao, Ying-zeng Yin, Guan-long Huang
Affiliation(s): Key Laboratory of Antennas and Microwave Technologies, Xidian University, Xi’an 710071, China; more
Corresponding email(s): lyzhao@xidian.edu.cn
Key Words: Mutual coupling, Multiple-input multiple-output, Antenna array, Metasurface, Decoupling

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Jia-yin Guo, Feng Liu, Guo-dong Jing, Lu-yu Zhao, Ying-zeng Yin, Guan-long Huang. Mutual coupling reduction of multiple antenna systems[J]. Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/FITEE.1900490

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author="Jia-yin Guo, Feng Liu, Guo-dong Jing, Lu-yu Zhao, Ying-zeng Yin, Guan-long Huang",
journal="Frontiers of Information Technology & Electronic Engineering",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/FITEE.1900490"
}

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%T Mutual coupling reduction of multiple antenna systems
%A Jia-yin Guo
%A Feng Liu
%A Guo-dong Jing
%A Lu-yu Zhao
%A Ying-zeng Yin
%A Guan-long Huang
%J Frontiers of Information Technology & Electronic Engineering
%P 366-376
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%I Zhejiang University Press & Springer
doi="https://doi.org/10.1631/FITEE.1900490"

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T1 - Mutual coupling reduction of multiple antenna systems
A1 - Jia-yin Guo
A1 - Feng Liu
A1 - Guo-dong Jing
A1 - Lu-yu Zhao
A1 - Ying-zeng Yin
A1 - Guan-long Huang
J0 - Frontiers of Information Technology & Electronic Engineering
SP - 366
EP - 376
%@ 2095-9184
Y1 - in press
PB - Zhejiang University Press & Springer
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doi="https://doi.org/10.1631/FITEE.1900490"

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: A multi-band multi-antenna system has become an important trend in the development of mobile communication systems. However, strong mutual coupling tends to occur between antenna elements with a small space, distorting array antennas’ performance. Therefore, in the multiple-input multiple-output (MIMO) antenna system, high isolation based on miniaturization of the antenna array has been pursued. We study in depth the methods of decoupling between antenna elements. Reasons for the existence of mutual coupling and advantages of mutual coupling reduction are analyzed. Then the decoupling methods proposed in recent works are compared and analyzed. Finally, we propose a metasurface consisting of double-layer short wires, which can be applied to improve the port isolation of antennas arranged along the H-plane and E-plane. Results show that the proposed metasurface has good decoupling effect on a closely placed antenna array.

多天线系统的互耦抑制

郭佳音¹，刘锋¹，荆国栋¹，赵鲁豫¹，尹应增¹，黄冠龙²
¹西安电子科技大学天线与微波技术重点实验室，中国西安市，710071
²深圳大学信息工程学院，广东省移动终端微波毫米波天线工程技术研究中心，中国深圳市，518060

摘要：多频带多天线系统已成为移动通信系统发展的重要趋势。但是，由于空间较小，天线单元之间往往会发生较强互耦，从而损坏阵列天线的性能。因此，在多输入多输出（MIMO）天线系统中，人们一直追求在天线阵列小型化的基础上，实现较高的隔离度。本文深入研究天线单元间的去耦方法，分析互耦原因及耦合减少的优势。然后，比较分析近期提出的解耦方法。最后，提出由双层短截线组成的超表面结构，以改善沿H面和E面排列的天线的端口隔离。结果表明，所提超表面对紧密放置的天线阵列具有良好去耦效果。

关键词组：互耦；多输入多输出；天线阵列；超表面；去耦

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多天线系统的互耦抑制

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