A Metasurface-Based MIMO Antenna for 5G Millimeter-Wave Applications
A Metasurface-Based MIMO Antenna for 5G Millimeter-Wave Applications
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DOI：
10.1109/access.2021.3069185
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发表时间：
2021-01-01
期刊：
影响因子：
3.9
通讯作者：
Amin, Yasar
中科院分区：
文献类型：
--
作者：
Tariq, Saba;Naqvi, Syeda I.;Amin, Yasar
本研究提出了一种用于第五代（5G）毫米波通信系统的具有单层超表面阵列的4元多输入多输出（MIMO）天线。每个MIMO天线单元由一个1 × 2的阵列和一个公司馈电网络组成。此外，采用由9 × 6圆形分裂环（CSR）形状单元组成的超表面阵列结构来提高MIMO天线单元之间的增益和隔离度。该天线系统采用0.787 mm厚的Rogers RT Duroid 5880基板实现。从s参数、辐射特性和MIMO参数等方面研究了天线的性能。天线工作在24.55至26.5 GHz的毫米波频段。超表面层的加入提高了增益，从而达到10.27 dBi的峰值测量增益。此外，采用超表面后，隔离度也提高了5dB。MIMO性能指标如包络相关系数（ECC）、分集增益（DG）、信道容量损耗（CCL）和平均有效增益（MEG）的研究显示出良好的天线特性。所建议天线的演示辐射特性确定了其对即将到来的5G通信系统的适用性。
This work presents a 4-element multiple-input multiple-output (MIMO) antenna with a single layered metasurface array for fifth generation (5G) millimeter-Wave (mm-Wave) communication systems. Each MIMO antenna element is composed of a 1 x 2 array with a corporate feed network. Moreover, a metasurface array structure consisting of 9 x 6 Circular Split Ring (CSR) shaped cells is employed to improve the gain and isolation between the MIMO antenna elements. The proposed antenna system is realized using 0.787 mm thick Rogers RT Duroid 5880 substrate. The performance of the antenna is investigated in terms of s-parameters, radiation characteristics, and MIMO parameters. The antenna operates at the mm-Wave frequency band ranging from 24.55 to 26.5 GHz. The incorporation of the metasurface layer enhanced the gain thus attaining a peak measured gain of 10.27 dBi. Additionally, isolation is also improved by 5dB after the employment of metasurface. The investigation of MIMO performance metrics such as Envelope Correlation Coefficient (ECC), Diversity Gain (DG), Channel Capacity Loss (CCL), and Mean Effective Gain (MEG) exhibits good antenna characteristics. The demonstrated radiation properties of the proposed antenna ascertain its suitability for the forthcoming 5G communication systems.