A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays

Jiazhi Tang; Faizan Faraz; Xiaoming Chen; Qingqing Zhang; Qinlong Li; Yingsong Li; Shuai Zhang

doi:10.1109/ACCESS.2020.3008162

IEEE Access (Jan 2020)

A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays

Jiazhi Tang,
Faizan Faraz,
Xiaoming Chen,
Qingqing Zhang,
Qinlong Li,
Yingsong Li,
Shuai Zhang

Affiliations

Jiazhi Tang: School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, China
Faizan Faraz: School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, China
Xiaoming Chen: ORCiD; School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, China
Qingqing Zhang: School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, China
Qinlong Li: School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an, China
Yingsong Li: ORCiD; College of Information and Communication Engineering, Harbin Engineering University, Harbin, China
Shuai Zhang: ORCiD; Department of Electronic Systems, Section of Antennas, Propagation and Millimeter-Wave Systems, Aalborg University, Aalborg, Denmark

DOI: https://doi.org/10.1109/ACCESS.2020.3008162
Journal volume & issue: Vol. 8
pp. 126859 – 126867

Abstract

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In this paper, a ε-negative metasurface superstrate is proposed for mutual coupling reduction of large antenna arrays. Unlike the previous decoupling metasurface works that are mostly confined to two-ports antennas, the proposed decoupling superstrate can be extended to massive multiple-input multiple-output (MIMO) systems. A 4 × 4 antenna array is used as an example to illustrate the decoupling performance of the proposed metasurface. With the decoupling metasurface, the worst mutual coupling of the antenna array is improved by 8 dB over the operation bandwidth with a maximum mutual coupling reduction of 25 dB. Moreover, the decoupling metasurface also help restore the radiation patterns, bring down the active voltage sanding wave ratio, and broaden the bandwidth of the array.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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