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Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System
In this paper, we present a flexible magnetic metamaterial structure for enhancing the efficiency of wireless power transfer (WPT) systems operating at 13.56 MHz. The metasurface between transmitter (Tx) and receiver (Rx) coils of the WPT system is constructed of a 3 × 5 metamaterial unit cell array...
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/PMC9570919/ https://www.ncbi.nlm.nih.gov/pubmed/36233923 http://dx.doi.org/10.3390/ma15196583 |
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author | Hiep, Le Thi Hong Khuyen, Bui Xuan Tung, Bui Son Ngo, Quang Minh Lam, Vu Dinh Pham, Thanh Son |
author_facet | Hiep, Le Thi Hong Khuyen, Bui Xuan Tung, Bui Son Ngo, Quang Minh Lam, Vu Dinh Pham, Thanh Son |
author_sort | Hiep, Le Thi Hong |
collection | PubMed |
description | In this paper, we present a flexible magnetic metamaterial structure for enhancing the efficiency of wireless power transfer (WPT) systems operating at 13.56 MHz. The metasurface between transmitter (Tx) and receiver (Rx) coils of the WPT system is constructed of a 3 × 5 metamaterial unit cell array with a total size of 150 × 300 mm(2). Most metamaterial structures integrated into WPT systems are in planar configurations with a rigid substrate, which limits practical applications. The proposed metasurface is fabricated on an FR-4 substrate with a thin thickness of 0.2 mm; therefore, it can be bent with radii greater than 80 mm. A defect cavity is formed in the non-homogeneous metasurface by controlling the resonant frequency of the unit cell with an external capacitor. Simulation and measurement results show that the efficiency of the WPT system is significantly enhanced with metasurfaces. The performance of the WPT system can also be optimized with suitable bend profiles of metasurfaces. This proposed flexible metasurface could be widely applied to WPT systems, especially asymmetric, bendable, or wearable WPT systems. |
format | Online Article Text |
id | pubmed-9570919 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-95709192022-10-17 Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System Hiep, Le Thi Hong Khuyen, Bui Xuan Tung, Bui Son Ngo, Quang Minh Lam, Vu Dinh Pham, Thanh Son Materials (Basel) Article In this paper, we present a flexible magnetic metamaterial structure for enhancing the efficiency of wireless power transfer (WPT) systems operating at 13.56 MHz. The metasurface between transmitter (Tx) and receiver (Rx) coils of the WPT system is constructed of a 3 × 5 metamaterial unit cell array with a total size of 150 × 300 mm(2). Most metamaterial structures integrated into WPT systems are in planar configurations with a rigid substrate, which limits practical applications. The proposed metasurface is fabricated on an FR-4 substrate with a thin thickness of 0.2 mm; therefore, it can be bent with radii greater than 80 mm. A defect cavity is formed in the non-homogeneous metasurface by controlling the resonant frequency of the unit cell with an external capacitor. Simulation and measurement results show that the efficiency of the WPT system is significantly enhanced with metasurfaces. The performance of the WPT system can also be optimized with suitable bend profiles of metasurfaces. This proposed flexible metasurface could be widely applied to WPT systems, especially asymmetric, bendable, or wearable WPT systems. MDPI 2022-09-22 /pmc/articles/PMC9570919/ /pubmed/36233923 http://dx.doi.org/10.3390/ma15196583 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 Hiep, Le Thi Hong Khuyen, Bui Xuan Tung, Bui Son Ngo, Quang Minh Lam, Vu Dinh Pham, Thanh Son Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title | Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title_full | Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title_fullStr | Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title_full_unstemmed | Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title_short | Flexible Magnetic Metasurface with Defect Cavity for Wireless Power Transfer System |
title_sort | flexible magnetic metasurface with defect cavity for wireless power transfer system |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9570919/ https://www.ncbi.nlm.nih.gov/pubmed/36233923 http://dx.doi.org/10.3390/ma15196583 |
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