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Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial

A honeycomb core material and metamaterial technology, applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problems of high density, insufficient working frequency band, and insufficient wave absorption effect, and achieve enhanced loss and improved dielectric parameters Effect

Inactive Publication Date: 2015-04-15
KUANG CHI INNOVATIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the common problem is that the density is very high and the working frequency band is not wide enough
[0003] Now there are also light-weight structural absorbing materials made of lightweight materials, such as honeycomb and foam materials, but the absorbing materials made by this method have no loss in the honeycomb layer, and the absorbing effect is not good enough. shortcoming

Method used

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  • Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial
  • Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial
  • Honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial

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Experimental program
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Effect test

Embodiment 1

[0025] figure 2 The honeycomb core material shown in this embodiment is a honeycomb core material with a rectangular metal frame-shaped annular microstructure, and its metal material is copper; image 3 As shown, it is the equivalent electromagnetic parameter. Among them, the upper left is the equivalent dielectric constant, the upper right is the equivalent magnetic permeability, the lower left is the impedance of the material, and the lower right is the equivalent refractive index of the material.

Embodiment 2

[0027] The only difference between this embodiment and Embodiment 1 is that the metal microstructure of the honeycomb core material in this embodiment is an annular microstructure, and it can obtain approximately the same technical effect as that of Embodiment 1 through experiments.

Embodiment 3

[0029] The difference between this embodiment and Embodiment 1 is that the metal microstructure of the honeycomb core material in this embodiment is an elliptical ring microstructure, and it can obtain approximately the same technical effect as that of Embodiment 1 through experiments.

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Abstract

The invention discloses honeycomb core material, compound wave-absorbing material and honeycomb enhanced metamaterial. The honeycomb core material comprises a plurality of honeycomb periodic structure units and is characterized in that artificial metal microstructures are attached to honeycomb walls of at least part of the honeycomb periodic structural units. Both the compound wave-absorbing material and the honeycomb enhanced metamaterial comprise the honeycomb core material. Compared with the traditional pure-honeycomb structure of the prior art, the honeycomb core material has the advantages that the metal microstructures are attached to the honeycomb walls, leading to dielectric parameter and permeability greatly improved within the X wave band, besides, within the frequency band, the permeability generates magnetic resonance so as to enhance loss; In this way, remarkable advantages are imparted on production of the narrow-band wave-absorbing material and high-loss shielding material.

Description

technical field [0001] The invention relates to the field of supermaterials, in particular to honeycomb core materials, composite wave-absorbing materials and honeycomb reinforced supermaterials. Background technique [0002] With the development of wireless communication technology, the influence of electromagnetic wave radiation on the environment is increasing day by day. The use of absorbing materials to control electromagnetic pollution and improve electromagnetic compatibility has become a major problem in material science. Absorbing materials refer to a class of materials that can effectively absorb human-induced electromagnetic waves and attenuate them. It converts incident electromagnetic waves into heat energy or other energy forms through various loss mechanisms of materials to achieve the purpose of absorbing waves. There are structural type and coating type of absorbing materials. The former mainly has wedge shape, foam shape, flat plate shape, etc., and the la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00
Inventor 不公告发明人
Owner KUANG CHI INNOVATIVE TECH
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