Fabrication Process of Metamaterials

Abstract

The invention relates to a preparation process of a metamaterial. The preparation process comprises the following steps of: manufacturing a silk screen printing plate, and tightening the silk screen printing plate on a screen frame, wherein included angles between warps and wefts of the silk screen printing plate and edges of the screen frame are less than 90 DEG; forming a plurality of artificial microstructure patterns on the silk screen printing plate by using a photoengraving method; covering a base material by the silk screen printing plate; coating conductive ink on the silk screen printing plate; and transferring the conductive ink to the base material through a plurality of pattern parts of the silk screen printing plate under the pressure, and thus obtaining the metamaterial. According to the preparation process, various materials can be selected as the base materials of the metamaterial, and requirements for the electromagnetic characteristics of different metamaterials are met. Compared with an etching process, the preparation process provided by the invention has the advantages that a great amount of waste liquid can be eliminated; the preparation process is more environment-friendly, more efficient, low in rejection rate, simple, and easy to operate and control; mass production can be realized; and the overall production cost of the metamaterial can be greatly reduced.

Description

technical field [0001] The invention relates to the field of supermaterials, and more specifically, to a preparation process of supermaterials. Background technique [0002] Metamaterial is a new type of artificial synthetic material with special electromagnetic response characteristics, so it can be widely used in electromagnetic communication and other fields. The metamaterial includes at least one sheet of material, each sheet of material includes a flat substrate and an artificial metal microstructure attached to the substrate, the substrate is mainly a glass fiber epoxy resin cured sheet, the artificial The metal microstructure is usually a metal wire with a certain geometric pattern such as "I" shape, snowflake shape, split resonator ring and the like. [0003] However, since the existing metamaterial preparation process is based on the PCB processing process, that is, a layer of metal foil is deposited on the surface of the substrate layer, and after exposure, plate ...

AI Technical Summary

Problems solved by technology

Therefore, the material of most substrates can only be the material whose main component is glass fiber, and brittle substrates such as ceramics cannot be used, thus greatly reducing the selectivity of metamaterial substrates

In addition, the high dielectric constant (ε) and dielectric loss tangent (Tanδ) of metamaterials based on glass fibers will cause signal attenuation when electromagnetic waves pass through metamaterials made of such substrates

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