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241016s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202411153
|2 doi
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|a pubmed24n1644.xml
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|a (DE-627)NLM378972073
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|a (NLM)39410731
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|a eng
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|a Qin, Jin
|e verfasserin
|4 aut
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|a Ultrabroadband and >93% Microwave Absorption Enabled by "Doped" Water Meta-Atom Lattice with Subwavelength Thickness
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 28.12.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Perfect microwave absorbers, which absorb electromagnetic waves completely, play pivotal roles in electromagnetic shielding, and stealth technologies. Existing microwave absorber technologies rely on either electromagnetic properties of absorptive materials, the resonance behavior of meta-atoms, or a combination of both. So far, achieving simultaneous broadband absorption, high efficiency, and compact sizes remains a great challenge. Inspired by atomic doping techniques employed in conventional optical materials to broaden spectral bandwidths, a single-layer microfluidic metasurface microwave absorber is proposed with the assembly of two distinct types of water meta-atoms. By manipulating electromagnetic resonances of these water meta-atoms, the metasurface maintains impedance matching over a broad working range. A microwave absorber design with a thickness equivalent to 0.2 times the central wavelength is showcased, measuring over 93% absorption across both K and Ka bands (17.5-40.0 GHz). The results highlight unprecedented superiorities of microwave absorbers based on a 2D doped water meta-atom lattice when compared to previously reported metasurface absorbers utilizing identical meta-atoms. This absorber has advantages including small thickness, broad bandwidth, and cost-effectiveness, making it promising for applications in electromagnetic shielding, camouflage, and multi-spectral stealth
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|a Journal Article
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|a 2D lattice
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|a broadband absorption
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|a microfluidic metasurface
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|a microwave absorber
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|a water meta‐atom
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|a Shi, Yuzhi
|e verfasserin
|4 aut
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|a Jiang, Shibin
|e verfasserin
|4 aut
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|a Gao, Yusong
|e verfasserin
|4 aut
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|a Yao, Shupei
|e verfasserin
|4 aut
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|a Wang, Zhanshan
|e verfasserin
|4 aut
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|a Cheng, Xinbin
|e verfasserin
|4 aut
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|a Tsai, Din Ping
|e verfasserin
|4 aut
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|a Zhang, Wu
|e verfasserin
|4 aut
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|a Zhu, Weiming
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 52 vom: 27. Dez., Seite e2411153
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:36
|g year:2024
|g number:52
|g day:27
|g month:12
|g pages:e2411153
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|u http://dx.doi.org/10.1002/adma.202411153
|3 Volltext
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