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Design and analysis of 4 × 4 MIMO antenna with DGS for WLAN applications

Published online by Cambridge University Press:  22 December 2020

K. Malaisamy Open the ORCID record for K. Malaisamy [Opens in a new window] ,
M. Santhi  and
S. Robinson
K. Malaisamy*
Affiliation:
Department of Electronics and Communication Engineering, TamilNadu, India Saranathan college of Engineering, Trichy, Tamil Nadu620012, India
M. Santhi
Affiliation:
Department of Electronics and Communication Engineering, TamilNadu, India Saranathan college of Engineering, Trichy, Tamil Nadu620012, India
S. Robinson
Affiliation:
Department of Electronics and Communication Engineering, TamilNadu, India Mount Zion college of Engineering and Technology, Pudukottai, Tamil Nadu622507, India
*
Author for correspondence: K. Malaisamy, E-mail: malaisamyme@gmail.com
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Abstract

In this paper, a low profile 4 × 4 multiple input and multiple output (MIMO) antenna is proposed and designed for wireless local area network (WLAN) application using a square split-ring resonator. Initially, a single square-patch antenna is designed with square-shaped split-ring slot. Subsequently, the two-element MIMO antenna is designed and it is extended to four-element MIMO antenna. Finally, the defected ground structure (DGS) is implemented in order to enhance antenna performance. The antenna elements are placed opposite to each other. The mutual coupling between the antennas elements is reduced by DGS. The proposed single, two and four-element antennas operate at 5.8 GHz for WLAN. The overall performance is measured in terms of S parameter, radiation pattern, and envelope correlation coefficient. The simulated results are verified through measurements. The simulated and measured results demonstrate that the proposed 4 × 4 MIMO antenna is the most suitable for WLAN applications.

Keywords

Antennadefected ground structureFR4MIMOWLAN
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 9 , November 2021 , pp. 979 - 985
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

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