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Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design
A conformal metamaterial absorber with simultaneous optical transparency and broadband absorption is proposed in this paper. The absorptance above 90% over a wide frequency range of 5.3–15 GHz can be achieved through topology optimization combined with a genetic algorithm (GA). The broadband absorpt...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622633/ https://www.ncbi.nlm.nih.gov/pubmed/34832829 http://dx.doi.org/10.3390/mi12111419 |
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author | Min, Pingping Song, Zicheng Yang, Lei Ralchenko, Victor G. Zhu, Jiaqi |
author_facet | Min, Pingping Song, Zicheng Yang, Lei Ralchenko, Victor G. Zhu, Jiaqi |
author_sort | Min, Pingping |
collection | PubMed |
description | A conformal metamaterial absorber with simultaneous optical transparency and broadband absorption is proposed in this paper. The absorptance above 90% over a wide frequency range of 5.3–15 GHz can be achieved through topology optimization combined with a genetic algorithm (GA). The broadband absorption can be kept at incident angles within 45° and 70° for TE mode and TM mode, respectively. In the meantime, by employing transparent substrates, including polyvinyl chloride (PVC) and polyethylene terephthalate (PET), good optical transmittance and flexibility can be obtained simultaneously. The experimental results agree well with the numerical simulations, which further validates the reliability of our design and theoretical analysis. With its visible-wavelength transparency, flexibility, broadband absorption, low profile, excellent angle stability and polarization insensitivity, the proposed absorber is highly favored for practical applications in microwave engineering, such as electromagnetic interference and stealth technology. Moreover, the proposed design method of topology optimization can be extended to design the absorber quickly and efficiently, according to specific engineering requirements. |
format | Online Article Text |
id | pubmed-8622633 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86226332021-11-27 Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design Min, Pingping Song, Zicheng Yang, Lei Ralchenko, Victor G. Zhu, Jiaqi Micromachines (Basel) Communication A conformal metamaterial absorber with simultaneous optical transparency and broadband absorption is proposed in this paper. The absorptance above 90% over a wide frequency range of 5.3–15 GHz can be achieved through topology optimization combined with a genetic algorithm (GA). The broadband absorption can be kept at incident angles within 45° and 70° for TE mode and TM mode, respectively. In the meantime, by employing transparent substrates, including polyvinyl chloride (PVC) and polyethylene terephthalate (PET), good optical transmittance and flexibility can be obtained simultaneously. The experimental results agree well with the numerical simulations, which further validates the reliability of our design and theoretical analysis. With its visible-wavelength transparency, flexibility, broadband absorption, low profile, excellent angle stability and polarization insensitivity, the proposed absorber is highly favored for practical applications in microwave engineering, such as electromagnetic interference and stealth technology. Moreover, the proposed design method of topology optimization can be extended to design the absorber quickly and efficiently, according to specific engineering requirements. MDPI 2021-11-18 /pmc/articles/PMC8622633/ /pubmed/34832829 http://dx.doi.org/10.3390/mi12111419 Text en © 2021 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 | Communication Min, Pingping Song, Zicheng Yang, Lei Ralchenko, Victor G. Zhu, Jiaqi Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title | Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title_full | Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title_fullStr | Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title_full_unstemmed | Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title_short | Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
title_sort | optically transparent flexible broadband metamaterial absorber based on topology optimization design |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8622633/ https://www.ncbi.nlm.nih.gov/pubmed/34832829 http://dx.doi.org/10.3390/mi12111419 |
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