Preparation method of three-dimensional artificial electromagnetic material

Abstract

The invention discloses a preparation method of a three-dimensional artificial electromagnetic material. The preparation method comprises the following steps: firstly, designing a periodic array pattern of the three-dimensional artificial electromagnetic material; selecting a flexible substrate; preparing a fiber bragg grating with a protective film being removed, paving one end of the fiber bragggrating with the protective layer being removed on the outer surface of the flexible substrate, and then heating, curing and pressing the flexible substrate to obtain an artificial electromagnetic material base blank; placing the artificial electromagnetic material base blank into a metal salt solution, and forming a metal coating through the electrolysis effect; selecting an artificial electromagnetic material base blank with one face electroplated with copper, adhering a dry film to the artificial electromagnetic material base blank, and then photoetching a needed pattern; soaking the photoetched material structure in a corrosive liquid for corrosion, wherein a pattern formed by the left copper is a microstructure needing to be prepared; and building a three-dimensional artificial electromagnetic material, and curling the etched material structure into any three-dimensional structure to form the three-dimensional artificial electromagnetic material. According to the invention, the economic cost is reduced, the process is simplified, and the prepared artificial electromagnetic material has good physical properties and technical effects.

Description

technical field [0001] The invention relates to a method for preparing a three-dimensional artificial electromagnetic material, which belongs to the technical field of artificial electromagnetic material preparation. Background technique [0002] Artificial electromagnetic materials are an emerging field now. It refers to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. The strange physical properties that natural materials do not have can be realized through periodic arrays of sub-wavelength structures. Thereby applying it provides new breakthroughs in the fields of physics, electronics, food, biology, medicine and other sciences. Usually, the preparation of three-dimensional artificial electromagnetic materials requires a series of complicated processes. Artificial electromagnetic materials are composed of periodically arranged metal resonant rings, and electric resonance or magnetic reso...

AI Technical Summary

Problems solved by technology

However, since most of the traditional technologies are based on just-made materials, it is impossible to form a rigid and flexible base embryo of artificial electromagnetic materials, which makes the process of preparing artificial electromagnetic materials complicated and costly, and the prepared artificial electromagnetic materials have Weak physical properties, etc.

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