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Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna

Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna


Title: Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna
Author: Ullah, Ubaid
Al-Hasan, Muath
Koziel, Slawomir   orcid.org/0000-0002-0584-4427
Mabrouk, Ismail Ben
Date: 2020
Language: English
Scope: 95585-95593
University/Institute: Háskólinn í Reykjavík
Reykjavik University
School: Tæknisvið (HR)
School of Technology (RU)
Department: Verkfræðideild (HR)
Department of Engineering (RU)
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2020.2995723
Subject: General Engineering; General Materials Science; General Computer Science; Antennas; MIMO antenna; MIMO communication; Polarization; Polarization diversity; Circular polarization; Bandwidth; Correlation; Impedance; Coplanar waveguides; Circuit optimization; Verkfræði; Efnisfræði; Tölvunarfræði; Loftnet; Skautun (rafsegulfræði); Bandbreidd; Viðnám; Bylgjufræði; Rafrásir; Bestun
URI: https://hdl.handle.net/20.500.11815/2159

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Citation:

Ullah, U., Al-Hasan, M., Koziel, S., & Ben Mabrouk, I. (2020). Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna. Ieee Access, 8, 95585–95593. https://doi.org/10.1109/ACCESS.2020.2995723

Abstract:

In this paper, a multiple-input-multiple-output (MIMO) antenna featuring circular polarization diversity, and designed on a common coplanar ground is presented. The proposed antenna design utilizes a coplanar waveguide (CPW) feeding technique with three parallel coplanar ground planes, and two feedlines in-between. For circular polarization (CP), quasi-loops are created by etching slots on the outermost ground planes. With this configuration, circular polarization diversity is induced in the MIMO antenna with the left-hand CP (LHCP) from one antenna and the right-hand CP (RHCP) from the other. The total footprint of the antenna radiator is only 0.78 lambda(0) x 0.55 lambda(0) = 0.42 lambda(2)(0). Experimental results show perfectly overlapping impedance and axial ratio bandwidths of 39.3% (4.5 GHz to 6.7 GHz). In addition, average in-band isolation vertical bar S-21 vertical bar <=-15 dB without any added complexity or active circuit elements. The peak realized gain of the antenna is 5.8 dBic with broadside radiation pattern in the +z- direction and envelope correlation coefficient (ECC) of 0.005. The antenna is suitable for multiple applications in the C-band that includes WLAN (5 GHz, 5.2 GHz and 5.8 GHz) and WiMAX (5.5 GHz).

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This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

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