Artificial electromagnetic material with wideband, high refractive index and low dispersity

Abstract

The invention relates to an artificial electromagnetic material with wideband, high refractive index and low dispersity. The artificial electromagnetic material comprises at least one artificial electromagnetic laminated layer, each artificial electromagnetic laminated layer comprises a first substrate and a second substrate which are arranged oppositely, wherein at least one artificial microstructure is attached on the surface, facing the second substrate, of the first substrate, and comprises at least two H-shaped members arranged from top to bottom. The artificial electromagnetic material of the structure has wide frequency band range, high refractive index and steadily changeable refractive index, can meet requirements of special occasions, such as the fields of semiconductor manufacturing, antenna manufacturing and the like, and accordingly, has wide application prospects.

Description

technical field [0001] The invention relates to an artificial electromagnetic material, more specifically, an artificial electromagnetic material with broadband, high refraction index and low dispersion characteristics. Background technique [0002] Artificial electromagnetic material, commonly known as metamaterial, is a new type of artificial synthetic material that can respond to electromagnetic waves. It consists of a substrate and an artificial microstructure attached to the substrate. Since the artificial microstructure is usually a structure with a certain geometric pattern arranged by conductive materials, it can respond to electromagnetic waves, so that the metamaterial as a whole exhibits electromagnetic properties different from those of the substrate, such as the dielectric constant ε and magnetic permeability. μ is different, according to the refractive index formula It can be seen that the refractive index n is also different. [0003] The existing artificia...

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Problems solved by technology

[0003] The existing artificial electromagnetic materials, the artificial microstructure usually adopts image 3 The ELC structure shown includes two split rings with opposite openings and a connecting line connecting the two split rings, and its refractive index characteristics are as follows Figure 4 As shown, it can be seen from the refractive index characteristic curve that the refractive index is relatively low, and the refractive index changes relatively large between 2GHz and 20GHz, that is, the dispersion characteristic is relatively high, and the broadband characteristic is not good enough.

Therefore, it is difficult to meet the requirements of high refractive index broadband and low dispersion characteristics in some special occasions, such as semiconductor manufacturing and antenna manufacturing and other fields

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