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Miniaturized CPW-fed UWB-MIMO antennas with decoupling stub and enhanced isolation

Published online by Cambridge University Press:  08 June 2021

Muhammad Irfan Khattak
Affiliation:
Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan
Muhammad Irshad Khan
Affiliation:
Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan
Muhammad Anab
Affiliation:
Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan
Amjad Ullah
Affiliation:
Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan
Muath Al-Hasan
Affiliation:
College of Engineering, Al-Ain University, Al-Ain, UAE
Jamel Nebhen
Affiliation:
College of Computer Engineering and Sciences, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia
Corresponding

Abstract

In this paper, a coplanar waveguide-fed ultra-wideband-multiple-input and multiple-output (UWB-MIMO) antenna with a novel stub for isolation has been presented. The dimensions of the proposed antenna are 18 × 22 × 1.6 mm3. The proposed antenna is design on an FR4 substrate and simulated in CST studio. The |S11| of the presented MIMO antenna is less than −10 dB between 2.8 and 13 GHz with an impedance bandwidth of 10.2 GHz. The envelope correlation coefficient (ECC) is less than 0.007 and diversity gain (DG) is greater than 9.97 dB. The proposed UWB-MIMO antenna is analyzed in terms of isolation, reflection coefficient, current distribution, ECC, DG, peak gain, multiplexing efficiency, and radiation pattern.

Type
Research Paper
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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References

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