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

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

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

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.

Original language	English
Article number	9137276
Journal	IEEE Access
Volume	8
Pages (from-to)	126859-126867
Number of pages	9
ISSN	2169-3536
DOIs	https://doi.org/10.1109/ACCESS.2020.3008162
Publication status	Published - Jul 2020

Keywords

Array
metasurface
mutual coupling reduction
superstrate

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10.1109/ACCESS.2020.3008162Licence: CC BY 4.0

Open Access articleFinal published version, 4.63 MBLicence: CC BY 4.0

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title = "A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays",

abstract = "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.",

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AU - Tang, Jiazhi

AU - Faraz, Faizan

AU - Chen, Xiaoming

AU - Zhang, Qingqing

AU - Li, Qinlong

AU - Li, Yingsong

AU - Zhang, Shuai

PY - 2020/7

Y1 - 2020/7

N2 - 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.

AB - 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.

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A Metasurface Superstrate for Mutual Coupling Reduction of Large Antenna Arrays

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