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A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements
This work presents a wideband, all-side square-cut square patch multiple-input, multiple-output circularly-polarized (MIMO-CP) high-isolation antenna. The MIMO-CP antenna contains a two-port square cut on all corners of the square patch, and parasitic elements of 9 × 5 periodic square metallic plate...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821261/ https://www.ncbi.nlm.nih.gov/pubmed/36614441 http://dx.doi.org/10.3390/ma16010103 |
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author | Khan, Ijaz Zhang, Kuang Wu, Qun Ullah, Inam Ali, Luqman Ullah, Habib Rahman, Saeed Ur |
author_facet | Khan, Ijaz Zhang, Kuang Wu, Qun Ullah, Inam Ali, Luqman Ullah, Habib Rahman, Saeed Ur |
author_sort | Khan, Ijaz |
collection | PubMed |
description | This work presents a wideband, all-side square-cut square patch multiple-input, multiple-output circularly-polarized (MIMO-CP) high-isolation antenna. The MIMO-CP antenna contains a two-port square cut on all corners of the square patch, and parasitic elements of 9 × 5 periodic square metallic plates are designed and operated. The outer dimensions of the antenna are 40 × 70 mm(2), and the FR4 substrate height is 1.6 mm. The proposed antenna with the parasitic elements improves impedance matching and enhances S-parameters and axial ratio (AR). In the suggested MIMO-CP antenna, a parasitic element is designed and placed around the antenna periodically to reduce mutual coupling (MC) and improve CP. Simulated results show that the suggested antenna has a wide bandwidth (BW) from 4.89 to 6.85 GHz for S(11) and was < −10 dB with AR ≤ 3 dB from 5.42 to 6.58 GHz, with a peak gain of 6.6 dB. The suggested antennas have more than 30 dB isolation and a low profile, are affordable, easily made, and are CP. To make a comparison with the measured and simulated results, a MIMO-CP antenna structure was fabricated and tested. The suggested antenna is better in terms of efficiency, envelope correlation coefficient (ECC), diversity gain (DG), channel capacity loss (CCL), and total active reflection coefficient (TARC). The proposed antenna is adequate for WLAN applications. |
format | Online Article Text |
id | pubmed-9821261 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98212612023-01-07 A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements Khan, Ijaz Zhang, Kuang Wu, Qun Ullah, Inam Ali, Luqman Ullah, Habib Rahman, Saeed Ur Materials (Basel) Article This work presents a wideband, all-side square-cut square patch multiple-input, multiple-output circularly-polarized (MIMO-CP) high-isolation antenna. The MIMO-CP antenna contains a two-port square cut on all corners of the square patch, and parasitic elements of 9 × 5 periodic square metallic plates are designed and operated. The outer dimensions of the antenna are 40 × 70 mm(2), and the FR4 substrate height is 1.6 mm. The proposed antenna with the parasitic elements improves impedance matching and enhances S-parameters and axial ratio (AR). In the suggested MIMO-CP antenna, a parasitic element is designed and placed around the antenna periodically to reduce mutual coupling (MC) and improve CP. Simulated results show that the suggested antenna has a wide bandwidth (BW) from 4.89 to 6.85 GHz for S(11) and was < −10 dB with AR ≤ 3 dB from 5.42 to 6.58 GHz, with a peak gain of 6.6 dB. The suggested antennas have more than 30 dB isolation and a low profile, are affordable, easily made, and are CP. To make a comparison with the measured and simulated results, a MIMO-CP antenna structure was fabricated and tested. The suggested antenna is better in terms of efficiency, envelope correlation coefficient (ECC), diversity gain (DG), channel capacity loss (CCL), and total active reflection coefficient (TARC). The proposed antenna is adequate for WLAN applications. MDPI 2022-12-22 /pmc/articles/PMC9821261/ /pubmed/36614441 http://dx.doi.org/10.3390/ma16010103 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Khan, Ijaz Zhang, Kuang Wu, Qun Ullah, Inam Ali, Luqman Ullah, Habib Rahman, Saeed Ur A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title | A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title_full | A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title_fullStr | A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title_full_unstemmed | A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title_short | A Wideband High-Isolation Microstrip MIMO Circularly-Polarized Antenna Based on Parasitic Elements |
title_sort | wideband high-isolation microstrip mimo circularly-polarized antenna based on parasitic elements |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821261/ https://www.ncbi.nlm.nih.gov/pubmed/36614441 http://dx.doi.org/10.3390/ma16010103 |
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