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A kind of metamaterial and its manufacturing method

A manufacturing method and metamaterial technology, applied in the direction of manufacturing tools, instruments, optical components, etc., can solve problems such as high cost and complicated preparation process, and achieve the effects of low yield rate, convenient iteration, and low iteration cost

Active Publication Date: 2021-12-10
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of complex and high-cost metamaterial preparation process in the prior art, the purpose of the present invention is to provide a new metamaterial manufacturing process for multi-component one-time molding and sintering

Method used

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  • A kind of metamaterial and its manufacturing method
  • A kind of metamaterial and its manufacturing method

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Experimental program
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preparation example Construction

[0026] The preparation method of the metamaterial provided by the present invention comprises the following steps:

[0027] like figure 1 Step S101 and figure 2 As shown in step S201, at least one of the wave absorbing agent powder and the metal electrode powder, and the insulating substrate powder are respectively added to the thermoplastic resin, mixed uniformly, and used as raw materials; wherein the wave absorbing agent powder includes carbon fiber One or more combinations of powder, silicon carbide fiber powder or polycrystalline iron fiber powder. Metal electrode powders include: one or more combinations of titanium, vanadium, chromium, zirconium, niobium, molybdenum, hafnium, tantalum or tungsten powders. The insulating substrate powder includes one or more combinations of polyimide, polyester, polyurethane, epoxy resin or polymethyl methacrylate powder. Thermoplastic resins include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylat...

Embodiment 1

[0032] Example 1: Preparation of Resin-Based Impedance Matching Metamaterials

[0033] 1. Add carbon fiber powder, tungsten powder, and epoxy resin powder to polyethylene resin, mix them evenly, and adjust them to have similar rheological properties as raw materials. Among them, carbon fiber powder, tungsten powder, and epoxy resin powder The ratio of the sum of mass to the mass of polyethylene resin is 0.28, the mass ratio of carbon fiber powder and tungsten powder to the mass of epoxy resin powder is 1:4, and the mass ratio of carbon fiber powder to tungsten powder It is 1:3.

[0034] 2. According to the microstructure design of the metamaterial, add the above-mentioned raw materials into the mold, and use a co-extrusion process to form a rod-shaped material with a microstructure unit with a clear interface.

[0035] 3. A number of (4×4, 5×5, etc.) microstructure unit rods are densely packed into the extruder, and the arrangement is the designed periodic arrangement of the ...

Embodiment 2

[0039] Example 2: Preparation of Curved Surface Resin-Based Impedance Matching Metamaterials

[0040] 1. Add silicon carbide fiber powder, titanium powder, and polyimide powder to polymethyl methacrylate resin, mix evenly, and adjust it to have similar rheological properties as raw materials, wherein silicon carbide fiber powder, The ratio of the sum of the mass of titanium powder and polyimide powder to the mass of polymethyl methacrylate resin is 0.36, and the ratio of the sum of the mass of carbon fiber powder and tungsten powder to the mass of epoxy resin powder is 4 : 1, the mass ratio of carbon fiber powder to tungsten powder is 1:4.

[0041] 2. According to the microstructure design of the metamaterial, add the above-mentioned raw materials into the mold, and use a co-extrusion process to form a rod-shaped material with a microstructure unit with a clear interface.

[0042] 3. A number of (4×4, 5×5, etc.) microstructure unit rods are densely packed into the extruder, a...

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Abstract

The invention provides a method for manufacturing a metamaterial, which includes the following steps: a) adding at least one of wave absorbing agent powder and metal electrode powder, and insulating substrate powder to thermoplastic resin, and mixing evenly, As a raw material; b) According to the microstructure design of the metamaterial, use the co-extrusion process to form the rod-shaped material of the microstructure unit; and c) arrange the rod-shaped material of the microstructure unit according to the periodic arrangement of the microstructure, put it into the extrusion machine, using an extruder to co-extrude periodically arranged metamaterial microstructures. The present invention also provides a metamaterial manufactured by the above method. The invention provides a ceramic-based metamaterial manufacturing method with high efficiency, low iteration cost and high yield by combining the polymer co-extrusion process with the metamaterial technology. Thinner and more efficient microwave-absorbing metamaterials are obtained through co-extrusion-co-firing process.

Description

technical field [0001] The invention relates to the field of electromagnetic communication, and more specifically, to a metamaterial and a manufacturing method thereof. Background technique [0002] Metamaterial is a kind of artificial composite structural material with extraordinary physical properties that natural materials do not have. It changes the permittivity and magnetic permeability μ of each point in space through artificial microstructures arranged periodically, so that the entire supermaterial The material has a dielectric constant and a magnetic permeability μ that surpass ordinary materials in a certain frequency range. And the refractive index n is equal to the square root of the product of the permittivity and the magnetic permeability μ, that is to say, we can manufacture metamaterials with a refractive index exceeding that of ordinary materials. [0003] Now the microstructure overprinting process is commonly used to manufacture multi-component microstruct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/00B29C48/00B29K505/00
CPCB29C67/04B29C69/001B29K2505/00H01Q15/00B29C69/00G02B1/002G02B5/003B28B3/20B28B11/16B28B11/243B29B7/90B29B11/10B29K2101/12B29K2995/0007
Inventor 不公告发明人
Owner KUANG CHI INST OF ADVANCED TECH
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