Bionic composite metamaterials for harvesting of microwave and integration of multifunctionality

Huang, Lingxi; Duan, Yuping; Liu, Jia; Zeng, Yiming; Ma, Guiping; Pang, Huifang; Zhang, Weiping

doi:10.1016/j.compscitech.2020.108640

Cited by 50 publications

(22 citation statements)

References 55 publications

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“…Furthermore, the metastructure with shape of grating [30], pyramid [31] and so on also could improve the absorption performance. Our previous works also demonstrated that the bionic metastructures also could improve the absorption property [32][33][34]. However, the previous microwave absorbing metamaterials still have to be relatively large thickness to achieve broadband absorption [28].…”

Section: Introductionmentioning

confidence: 98%

Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties

2023

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In order to break through the bottleneck of narrow effective absorption bandwidth (reflection loss RL ≤ −10 dB) of microwave absorbing materials, herein, we fabricate the metamaterials with carbon fiber (CF) and FeSi alloy (FSA) ribbon metastructure which is distributed in the carbonyl iron powders (CIP)/polyurethane (PU) matrix. The experimental results show that the microwave absorption capacity of the matrix can be significantly enhanced by CF. Compared with the pure matrix, the effective absorption bandwidth increases from 9.4–13.44 GHz to 11–16.8 GHz when the CF is parallel to the electric field vector and the spacing between adjacent CF is 20 mm. Furthermore, the CF and FSA ribbons are arranged in the matrix as an orthogonal arrangement, and the best absorption bandwidth cover 9.76–14.46 GHz when the electric field is parallel and 9.96–14.1GHz when the electric field is vertical when the spacing is 30 mm. The electromagnetic simulation of the metamaterials is calculated, it is proved that the increase of effective absorption bandwidth is due to the strengthening of carbon fiber and its coupling with FSA ribbon. This paper provides a new research path for improving the absorption properties of thin layer microwave absorbing materials.

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Section: Introductionmentioning

confidence: 98%

Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties

2023

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“…In particular, magnetic MAMs composed of magnetic metal particles can obtain wider absorption bandwidth than the other types in the case of equal thickness due to high magnetic permeability. [11][12][13][14][15] However, they cannot provide sufficient magnetic loss in the low-frequency region below 6 GHz because of Snoek's limit [16] and natural resonance. [17] Doping modification of magnetic absorbers or changing their morphology and particle size attenuation, which provides a novel strategy for realizing broadband microwave absorbers.…”

Section: Introductionmentioning

confidence: 99%

Huygens’ Metasurface Based on Induced Magnetism: Enhance the Microwave Absorption Performance of Magnetic Coating

Zhang

Duan

Huang

et al. 2022

Adv Materials Inter

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are the most commonly used methods to resolve above trouble. Although many good results [18][19][20] have been extensively achieved, the limited maneuverability of the material para meters and the complexity of the synthesis process still restrict their practical application. The recent development of metamaterial absorbers based on subwavelength thickness structures has injected new impetus into this subject. Compared with traditional absorbing materials, metamaterials show the advantages of tunability, thin thickness, and lightweight, with simple geometry for both experimental implementation and mass production. Moreover, metamaterial absorbers can exhibit near-unity absorption at a certain frequency or several discrete frequencies due to both their inherent resonance mechanism and the accompanying dispersion. [21][22][23] Considering the broadband absorption advantage of traditional microwave absorbing materials in high frequency region and the flexible adjustability of electromagnetic (EM) parameters of metamaterials, the combination of metamaterials and traditional absorbers will give play to their respective advantages, which is a more ideal way to obtain high-performance absorbers. For example, the cruciform meta-atom is periodically arranged and embedded into carbonyl iron particle (CIP) coating, enhancing the average reflection loss by 45.8%. [24] When a metamaterial as an intermediate layer is inserted between two magnetic coatings, multiple resonances will be introduced to effectively broaden the absorption bandwidth. [25,26] These methods focus more on the ability of metamaterials to dissipate EM waves but ignore the wavefront modulation of metamaterials, which also can extend EM absorption spectrum. Guan combined a nonplanar magnetic metamaterial and a magnetic coating into a hybrid absorber, exhibiting 90% absorptivity around 2.4 GHz and over the 8-18 GHz. [13] Liang proposed gradient impedance metamaterial as impedance matching layer and combined it with multilayer ITO metamaterial to realize ultrawideband absorption at 1-18 GHz. [27] Regretfully, the total thickness of above configurations both exceed 10 mm, and the latter even reaches 31.6 mm. Obviously, these non-systematic conceptual-based designs with large lattice constants lead to a large thickness, which is not acceptable for the MAMs. Even so, metamaterials can be used as impedance matching layer to induce EM waves into magnetic coatings to promote Despite great efforts in material design and modification, there are still obstacles to improve the effective microwave absorption, which hinders the development of stealth materials. By introducing a magnetically induced Huygens' metasurface with Fibonacci spiral meta-atom, a hierarchical absorber with carbonyl iron particle coating is designed and prepared, of which the total effective absorption bandwidth (EAB, reflection loss ≤−10 dB) amazingly reaches 9.41 GHz, exceeding 199% of the original coatings', and the absorption peak value declines from −15.91 to −32.12 dB. The overall thickness of...

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“…The researchers designed metamaterial structures based on bionic theory. [30][31][32][33][34][35][36][37] Inspired by the hierarchical structure of butterfly, Wu et al proposed and designed a novel lattice structure with second-order periodicity, and they found that lattices with hierarchical periodicity had lower bandgaps. [38] Miniaci et al first proposed the idea of taking inspiration from spider webs to build phononic crystals in 2016.…”

Section: Introductionmentioning

confidence: 99%

Wave Propagation Properties of a Spider‐Web‐Like Hierarchical Acoustic Metamaterial

Ruan

Liu

2022

Physica Status Solidi (b)

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Herein, a hierarchical acoustic metamaterial with a spider‐web‐like structure is proposed based on bionics theory. The wave propagation behaviors of the hierarchical structures are studied and discussed with the finite‐element method and Bloch theorem. The effects of the basic shape of the hierarchical structure, the levels (n), and the ambient temperature on the distribution of the bandgap are analyzed, respectively. The results show that the quadrilateral hierarchical structure has better bandgap properties than the same level's octagonal and hexagonal hierarchical structures. The level of the hierarchical structure has a significant effect on the distribution of the low‐frequency bandgap. When the level of the structure is 15, the lowest opening frequency is 99.875 Hz. When the temperature variable is introduced, the temperature‐induced deformation can significantly change the range of the first bandgap of the hierarchical structure. These findings can provide new ideas for the design of acoustic metamaterials.

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Bionic composite metamaterials for harvesting of microwave and integration of multifunctionality

Cited by 50 publications

References 55 publications

Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties

Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties

Huygens’ Metasurface Based on Induced Magnetism: Enhance the Microwave Absorption Performance of Magnetic Coating

Wave Propagation Properties of a Spider‐Web‐Like Hierarchical Acoustic Metamaterial

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