High gain and enhanced isolation MIMO antenna with FSS and metasurface

被引：13
作者：
Singh, Akanksha [1 ]
Kumar, Arvind [1 ]
Kanaujia, Binod Kumar [2 ]
机构：
[1] NIT Kurukshetra, Dept Elect & Commun Engn, Kurukshetra, India
[2] NIT Jalandhar, Dept Elect & Commun Engn, Jalandhar, India
来源：
OPTIK | 2023年 / 286卷
关键词：
MIMO; Frequency selective surfaces (FSS); IoT; Wi-Fi; Metasurface; DECOUPLING METHOD; REDUCTION; ARRAY; EBG;
D O I：
10.1016/j.ijleo.2023.170982
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This research work proposes a high gain MIMO antenna with improved isolation. The present antenna is low profile and contains four elements built with FR-4 substrate. This antenna uses a superstrate based metasurface to reduce the coupling between antenna elements and frequency selective surface (FSS) to improve the antenna gain. The suggested antenna is topped with a superstrate-based metasurface, which is positioned at a height of 15 mm below the antenna. FSS structure consists of a concentric circular ring on a single-layered FR4 substrate. The present MIMO antenna has operating band of 1.18-2.89 GHz with a peak gain of 8.44 dBi and isolation of less than -20 dB between each antenna element. This MIMO antenna provides maximum effi-ciency of 96% and 92.3% reduction in the correlation coefficient. Additionally, the current structure offers a diversity gain (DG) of 9.99 and an envelope correlation coefficient (ECC) of 0.01.
引用
收藏
页数：15
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