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...
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2021
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oai:doaj.org-article:beb8eeb3234441c0b2756285bb80ce072021-11-25T18:23:51ZOptically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design10.3390/mi121114192072-666Xhttps://doaj.org/article/beb8eeb3234441c0b2756285bb80ce072021-11-01T00:00:00Zhttps://www.mdpi.com/2072-666X/12/11/1419https://doaj.org/toc/2072-666XA 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.Pingping MinZicheng SongLei YangVictor G. RalchenkoJiaqi ZhuMDPI AGarticlebroadband metamaterial absorberoptically transparentflexibletopology optimizationMechanical engineering and machineryTJ1-1570ENMicromachines, Vol 12, Iss 1419, p 1419 (2021) |
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broadband metamaterial absorber optically transparent flexible topology optimization Mechanical engineering and machinery TJ1-1570 |
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broadband metamaterial absorber optically transparent flexible topology optimization Mechanical engineering and machinery TJ1-1570 Pingping Min Zicheng Song Lei Yang Victor G. Ralchenko Jiaqi Zhu Optically Transparent Flexible Broadband Metamaterial Absorber Based on Topology Optimization Design |
| 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 |
article |
| author |
Pingping Min Zicheng Song Lei Yang Victor G. Ralchenko Jiaqi Zhu |
| author_facet |
Pingping Min Zicheng Song Lei Yang Victor G. Ralchenko Jiaqi Zhu |
| author_sort |
Pingping Min |
| title |
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_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_sort |
optically transparent flexible broadband metamaterial absorber based on topology optimization design |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/beb8eeb3234441c0b2756285bb80ce07 |
| work_keys_str_mv |
AT pingpingmin opticallytransparentflexiblebroadbandmetamaterialabsorberbasedontopologyoptimizationdesign AT zichengsong opticallytransparentflexiblebroadbandmetamaterialabsorberbasedontopologyoptimizationdesign AT leiyang opticallytransparentflexiblebroadbandmetamaterialabsorberbasedontopologyoptimizationdesign AT victorgralchenko opticallytransparentflexiblebroadbandmetamaterialabsorberbasedontopologyoptimizationdesign AT jiaqizhu opticallytransparentflexiblebroadbandmetamaterialabsorberbasedontopologyoptimizationdesign |
| _version_ |
1718411222011871232 |