Method for making object invisible

Abstract

The present invention relates to a method for making an object invisible. The method comprises the following steps of: S1, through coordinate identification, in order to achieve that electromagnetic waves go around a surface of the object or are reflected in a plane wave form, acquiring a needed electromagnetic parameter of every point of the object surface; S2, designing metamaterials according to the electromagnetic parameter, wherein the metamaterials are sheet-like substrates and a plurality of artificial microstructures attached to the sheet-like substrates; S3, coating the metamaterials on the object, and enabling the metamaterials to guide the electromagnetic waves to go around the object to achieve invisibility, or when the electromagnetic waves scan the object, the metamaterials allow the electromagnetic waves to be reflected in the plane wave form to realize invisibility. According to the invention, through a special design, the electromagnetic parameters inside the metamaterials show different refractive indexes, the electromagnetic waves can be seized and guided to propagate in a specified direction, and the invisibility of the object is realized.

Description

technical field [0001] The invention relates to the field of metamaterials, in particular to a method for making objects invisible. Background technique [0002] Avoid the detection of electromagnetic waves, and let objects disappear in the detection of electromagnetic waves. This idea has been proposed many years ago, and many stealth technologies have been developed during this period. Among them, it is most common to coat the surface of the object with a corrosion-resistant absorbing material. The purpose is to make the electromagnetic wave irradiated on the surface of the object absorbed by the coated absorbing material, and the non-reflected signal returns to the detector so that the object is relatively invisible to the microwave. . There are great loopholes in the application of this method, one: electromagnetic waves cannot be absorbed by 100% when they irradiate on the wave-absorbing material, and there will be reflected waves returning to the microwave detector e...

AI Technical Summary

Problems solved by technology

There are great loopholes in the application of this method. One: When the electromagnetic wave is irradiated on the absorbing material, it cannot be absorbed by 100%, and there will be reflected waves returning to the microwave detector end to expose the object to the microwave detection equipment.

Two: Absorbing materials have different absorption strengths for different wavelengths of electromagnetic waves. In the face of existing microwave detectors with frequency hopping and wide frequency ranges, it is impossible for the absorbing materials coated on the surface of objects to meet this challenge. will be eliminated by the advancement of technology

There have also been some research results, but most of them are still in the laboratory research stage, and there is not much research on their application in reality.

Moreover, when the current technology is realized, it is greatly hindered both in processing technology and in material selection.

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