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Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones

Maintaining the compactness of 5G smartphones while accommodating millimeter-wave (mm-wave) bands presents a significant challenge due to the substantial difference in frequency. To tackle this issue, we introduce a miniaturized quad-port dual-band multiple-input, multiple-output (MIMO) antenna with...

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Main Authors: Elabd, Rania Hamdy, Al Gburi, Ahmed Jamal Abdullah
Format: Article
Language:English
Published: Springer Nature 2024
Online Access:http://eprints.utem.edu.my/id/eprint/27816/2/02702220820241253201038.pdf
http://eprints.utem.edu.my/id/eprint/27816/
https://link.springer.com/article/10.1007/s42452-024-05765-w
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spelling my.utem.eprints.278162024-10-09T16:19:58Z http://eprints.utem.edu.my/id/eprint/27816/ Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones Elabd, Rania Hamdy Al Gburi, Ahmed Jamal Abdullah Maintaining the compactness of 5G smartphones while accommodating millimeter-wave (mm-wave) bands presents a significant challenge due to the substantial difference in frequency. To tackle this issue, we introduce a miniaturized quad-port dual-band multiple-input, multiple-output (MIMO) antenna with low mutual coupling (MC) and a considerable frequency difference. This quad-port MIMO antenna, built on a Rogers TMM4 substrate, measures 17.76 × 17.76 mm2 and boasts a dielectric constant of 4.5. It incorporates four planar patch antennas, positioned at the corners in perpendicular orientations. For dual-band operation at 28/38 GHz, each antenna element features a rectangular patch with four rectangular slots, complemented by a full ground plane. The spacing between these elements is 0.5 λo, and we've included a decoupling structure (DS) to minimize mutual coupling (MC) among the MIMO antenna elements with minimal complexity and cost. Simulation and measurement results reveal a significant reduction in mutual coupling between the array elements, ranging from − 25 to − 60 dB. As a result, we’ve developed the envelope correlation coefficient (ECC) and made advancements in the total active reflection coefficient (TARC), mean effective gain (MEG), and diversity gain (DG). The measured gains for this design are approximately 8.9 dBi at both 28 GHz and 38 GHz, with a radiation efficiency of nearly 93%. Furthermore, specific absorption rate (SAR) analysis confirms the MIMO antenna's suitability for smartphone handsets operating within the target frequency band. Springer Nature 2024-04 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/27816/2/02702220820241253201038.pdf Elabd, Rania Hamdy and Al Gburi, Ahmed Jamal Abdullah (2024) Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones. Discover Applied Sciences, 06 (4). ISSN 3004-9261 https://link.springer.com/article/10.1007/s42452-024-05765-w 10.1007/s42452-024-05765-w
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description Maintaining the compactness of 5G smartphones while accommodating millimeter-wave (mm-wave) bands presents a significant challenge due to the substantial difference in frequency. To tackle this issue, we introduce a miniaturized quad-port dual-band multiple-input, multiple-output (MIMO) antenna with low mutual coupling (MC) and a considerable frequency difference. This quad-port MIMO antenna, built on a Rogers TMM4 substrate, measures 17.76 × 17.76 mm2 and boasts a dielectric constant of 4.5. It incorporates four planar patch antennas, positioned at the corners in perpendicular orientations. For dual-band operation at 28/38 GHz, each antenna element features a rectangular patch with four rectangular slots, complemented by a full ground plane. The spacing between these elements is 0.5 λo, and we've included a decoupling structure (DS) to minimize mutual coupling (MC) among the MIMO antenna elements with minimal complexity and cost. Simulation and measurement results reveal a significant reduction in mutual coupling between the array elements, ranging from − 25 to − 60 dB. As a result, we’ve developed the envelope correlation coefficient (ECC) and made advancements in the total active reflection coefficient (TARC), mean effective gain (MEG), and diversity gain (DG). The measured gains for this design are approximately 8.9 dBi at both 28 GHz and 38 GHz, with a radiation efficiency of nearly 93%. Furthermore, specific absorption rate (SAR) analysis confirms the MIMO antenna's suitability for smartphone handsets operating within the target frequency band.
format Article
author Elabd, Rania Hamdy
Al Gburi, Ahmed Jamal Abdullah
spellingShingle Elabd, Rania Hamdy
Al Gburi, Ahmed Jamal Abdullah
Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
author_facet Elabd, Rania Hamdy
Al Gburi, Ahmed Jamal Abdullah
author_sort Elabd, Rania Hamdy
title Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
title_short Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
title_full Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
title_fullStr Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
title_full_unstemmed Low mutual coupling miniaturized dual-band quad-port MIMO antenna array using decoupling structure for 5G smartphones
title_sort low mutual coupling miniaturized dual-band quad-port mimo antenna array using decoupling structure for 5g smartphones
publisher Springer Nature
publishDate 2024
url http://eprints.utem.edu.my/id/eprint/27816/2/02702220820241253201038.pdf
http://eprints.utem.edu.my/id/eprint/27816/
https://link.springer.com/article/10.1007/s42452-024-05765-w
_version_ 1814061431759306752
score 13.211869

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