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A multimode metamaterial for a compact and robust dualband wireless power transfer system

To release more flexibility for users to charge their portable devices, researchers have increasingly developed compact wireless power transfer (WPT) systems in recent years. Also, a dual-band WPT system is proposed to transfer power and signal simultaneously, enriching the system’s functionality. M...

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Autores principales: Jiang, Xin, Pokharel, Ramesh K., Barakat, Adel, Yoshitomi, Kuniaki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586012/
https://www.ncbi.nlm.nih.gov/pubmed/34764393
http://dx.doi.org/10.1038/s41598-021-01677-6
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author Jiang, Xin
Pokharel, Ramesh K.
Barakat, Adel
Yoshitomi, Kuniaki
author_facet Jiang, Xin
Pokharel, Ramesh K.
Barakat, Adel
Yoshitomi, Kuniaki
author_sort Jiang, Xin
collection PubMed
description To release more flexibility for users to charge their portable devices, researchers have increasingly developed compact wireless power transfer (WPT) systems in recent years. Also, a dual-band WPT system is proposed to transfer power and signal simultaneously, enriching the system’s functionality. Moreover, a stacked metasurface has recently been proposed for a single band near-field WPT system. In this study, a novel multimode self-resonance-enhanced wideband metasurface is proposed for a robust dual-band WPT system, which significantly improves the performance of both bands. The size of the transmitter (Tx) and the receiver (Rx) are both 15 mm × 15 mm only. The proposed metasurface can improve efficiency from 0.04 up to 39% in the best case. The measured figure of merit (FoM) is 2.09 at 390 MHz and 2.16 at 770 MHz, respectively, in the balanced mode. Especially, the FoM can reach up to 4.34 in the lower mode. Compared to the previous state-of-the-art for similar applications, the WPT performance has significantly been improved.
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spelling pubmed-85860122021-11-12 A multimode metamaterial for a compact and robust dualband wireless power transfer system Jiang, Xin Pokharel, Ramesh K. Barakat, Adel Yoshitomi, Kuniaki Sci Rep Article To release more flexibility for users to charge their portable devices, researchers have increasingly developed compact wireless power transfer (WPT) systems in recent years. Also, a dual-band WPT system is proposed to transfer power and signal simultaneously, enriching the system’s functionality. Moreover, a stacked metasurface has recently been proposed for a single band near-field WPT system. In this study, a novel multimode self-resonance-enhanced wideband metasurface is proposed for a robust dual-band WPT system, which significantly improves the performance of both bands. The size of the transmitter (Tx) and the receiver (Rx) are both 15 mm × 15 mm only. The proposed metasurface can improve efficiency from 0.04 up to 39% in the best case. The measured figure of merit (FoM) is 2.09 at 390 MHz and 2.16 at 770 MHz, respectively, in the balanced mode. Especially, the FoM can reach up to 4.34 in the lower mode. Compared to the previous state-of-the-art for similar applications, the WPT performance has significantly been improved. Nature Publishing Group UK 2021-11-11 /pmc/articles/PMC8586012/ /pubmed/34764393 http://dx.doi.org/10.1038/s41598-021-01677-6 Text en © The Author(s) 2021, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Jiang, Xin
Pokharel, Ramesh K.
Barakat, Adel
Yoshitomi, Kuniaki
A multimode metamaterial for a compact and robust dualband wireless power transfer system
title A multimode metamaterial for a compact and robust dualband wireless power transfer system
title_full A multimode metamaterial for a compact and robust dualband wireless power transfer system
title_fullStr A multimode metamaterial for a compact and robust dualband wireless power transfer system
title_full_unstemmed A multimode metamaterial for a compact and robust dualband wireless power transfer system
title_short A multimode metamaterial for a compact and robust dualband wireless power transfer system
title_sort multimode metamaterial for a compact and robust dualband wireless power transfer system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586012/
https://www.ncbi.nlm.nih.gov/pubmed/34764393
http://dx.doi.org/10.1038/s41598-021-01677-6
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