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Preparation method of three-dimensional-structure metamaterial

A three-dimensional structure and metamaterial technology, applied in the field of metamaterial preparation, can solve the problems of inability to fast, high processing cost and process control cost, and achieve the effects of low processing cost, reduced process complexity, and simple process precision control.

Active Publication Date: 2013-10-30
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing cost and process control cost of this kind of preparation method are all quite high and cannot fast, mass production

Method used

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  • Preparation method of three-dimensional-structure metamaterial
  • Preparation method of three-dimensional-structure metamaterial
  • Preparation method of three-dimensional-structure metamaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Three-dimensional structured metamaterials are prepared by

[0060] 1. Analyze the Gaussian curvature variation of the surface of the three-dimensional structural metamaterial simulation model, and divide the three-dimensional structural metamaterial simulation model into multiple geometric regions according to the Gaussian curvature.

[0061] Such as image 3 as shown, image 3 It is a geometric area division diagram of the three-dimensional structural metamaterial simulation model of this embodiment. image 3 In , geometric regions of the same hatch pattern represent regions of similar curvature. In this embodiment, the three-dimensional structural metamaterial simulation model is divided into five geometric regions J1-J5 according to the division method that the ratio of the maximum Gaussian curvature to the minimum Gaussian curvature in each geometrical region is less than 20.

[0062] 2. Surface unfolding.

[0063] surface unwrapping refers to the image 3 The...

Embodiment 2

[0069] Three-dimensional structured metamaterials are prepared by

[0070] 1. Calculating one or more electromagnetic parameter values ​​everywhere in the three-dimensional structural metamaterial simulation model.

[0071] The electromagnetic parameter may be incident angle of electromagnetic wave, axis ratio, phase value or incident angle of electric field of electromagnetic wave, etc. Which electromagnetic parameter value to choose is determined by the function that the three-dimensional structural metamaterial needs to realize. In this embodiment, the three-dimensional structural metamaterial needs to have the same electromagnetic response to electromagnetic waves with different incident angles. The electromagnetic response can be electromagnetic wave absorption, electromagnetic wave transmission, polarization conversion, etc. In this embodiment, the electromagnetic response is electromagnetic wave transmission.

[0072] Figure 6 The calculation method of the incident ...

Embodiment 3

[0093] Three-dimensional structured metamaterials are prepared by

[0094] 1. Calculating one or more electromagnetic parameter values ​​everywhere in the three-dimensional structural metamaterial simulation model.

[0095] The electromagnetic parameter may be incident angle of electromagnetic wave, axis ratio, phase value or incident angle of electric field of electromagnetic wave, etc. Which electromagnetic parameter value to choose is determined by the function that the three-dimensional structural metamaterial needs to realize. In this embodiment, the three-dimensional structural metamaterial needs to realize polarization conversion, that is, electromagnetic waves with different electric field incident angles can be converted into the required polarization mode, that is, the electric field exit angle.

[0096] The method of determining the incident angle of the electric field is similar to the method of determining the incident angle of the electromagnetic wave in Embodimen...

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Abstract

The invention discloses a preparation method of a three-dimensional-structure metamaterial. The preparation method comprises the following steps of: preparing a molding base material according to the shape of the three-dimensional-structure metamaterial, arranging artificial microstructures on a flexible substrate, adhering the flexible substrate to the surface of the molding base material, and heating and solidifying the flexible substrate and the base material to form the three-dimensional-structure metamaterial. The preparation method provided by the invention adopts a mode with the flexible substrate and the molding base material to prepare the three-dimensional-structure metamaterial, and does not need a three-dimensional engraving or etching step, so that the process complexity is reduced, the processing cost is low, and the process accuracy control is simple; the three-dimensional-structure metamaterial prepared by the preparation method can replace different structural members which are provided with complex curved surfaces and need certain electromagnetic modulation functions, and also can be adhered to the different structural members with the complex curved surfaces so as to realize the required electromagnetic modulation functions; and by virtue of a curved surface development mode and an electromagnetic divisional mode, the three-dimensional-structure metamaterial can have good electromagnetic response and a wide application range.

Description

technical field [0001] The invention relates to a method for preparing a supermaterial, in particular to a method for preparing a three-dimensional structure supermaterial. Background technique [0002] Metamaterial is a new type of artificial material that has been developed in the past ten years to modulate electromagnetic waves. The basic principle is to artificially design the microstructure (or artificial "atom") of the material, so that such a microstructure has specific electromagnetic properties. Therefore, the material composed of a large number of microstructures can have the desired electromagnetic function macroscopically. Different from traditional material technology, which develops electromagnetic utilization methods based on the natural properties of existing materials in nature, metamaterial technology artificially designs the properties of materials and manufactures materials according to needs. Metamaterials are generally composed of a certain number of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
Inventor 刘若鹏赵治亚金晶
Owner KUANG CHI INST OF ADVANCED TECH
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