Preparation method of metamaterial and metamaterial

Abstract

Provided in the present invention are a metamaterial manufacturing method allowing for flexible setting of the magnitudes of the dielectric constant and of the magnetic permeability of a metamaterial and the metamaterial. The metamaterial manufactured using the method is formed by combining multiple layers of metamaterial functional boards. Each metamaterial functional board comprises a dielectric substrate and multiple artificial microstructures arrayed on the dielectric substrate. The metamaterial functional boards have formed therebetween a unibody material. The unibody material is manufactured using a sol-gel process. Employment of the metamaterial manufacturing method and the metamaterial of the present invention allows for designing at will the dielectric constant and the magnetic permeability of the metamaterial, and for greater selection of materials, thus broadening to the greatest extent the scope of functional applications of the metamaterial.

Description

【Technical field】 [0001] The invention relates to the field of metamaterials, in particular to composite preparation technology of supermaterials. 【Background technique】 [0002] The so-called metamaterials refer to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. Through the orderly design of the structure on the key physical scale of the material, the limitations of some apparent natural laws can be broken through, so as to obtain ordinary supernormal material functions beyond the inherent nature. For example, metamaterials are formed by stacking or arraying multiple layers of metamaterial functional plates. Metamaterial functional plates are composed of a dielectric substrate and multiple metal microstructures arranged on the dielectric substrate. Metamaterials can provide various common materials with and without material properties. The size of a single metal microstructure is genera...

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Problems solved by technology

Moreover, metal microstructures can have artificially designed electromagnetic parameters, resulting in many novel phenomena

[0003] The artificial microstructures of the existing metamaterial functional boards are generally arrayed on the surface or inside of the dielectric substrate, and the metamaterial functional boards of each layer are closely combined to form the entire metamaterial, and the equivalent dielectric constant or equivalent magnetic permeability of each unit is the medium The superposition of the dielectric constant or magnetic permeability of the substrate and the artificial microstructure, because the selection of the dielectric substrate is limited by the functional application of the metamaterial, the selectivity of the dielectric constant and magnetic permeability is limited, so it can only be changed by changing Artificial microstructures are used to change the equivalent permittivity or equivalent permeability of the entire metamaterial. Although artificial microstructures can produce specific responses to electromagnetic waves through specific arrangement rules, they cannot affect a wide range. The permittivity and permeability of the entire metamaterial, so the design of the overall permittivity and permeability of the entire metamaterial is still not flexible enough and has many limitations

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