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A Broadband Absorbing Metamaterial

A metamaterial and broadband technology, which is applied in the field of broadband absorbing metamaterials, can solve the problems of complex design, unsatisfactory, and limited mechanical properties of materials, and achieve the effect of wide absorbing frequency band and strong absorbing performance

Active Publication Date: 2017-11-24
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The existing wave-absorbing materials make use of the absorption properties of each material for electromagnetic waves. By designing the components of different materials, the mixed materials have wave-absorbing properties. The design of such materials is complicated and does not have large-scale promotion. The mechanical properties of the material are limited by the mechanical properties of the material itself, which cannot meet the needs of special occasions

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  • A Broadband Absorbing Metamaterial
  • A Broadband Absorbing Metamaterial
  • A Broadband Absorbing Metamaterial

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Light, as a kind of electromagnetic wave, when it passes through glass, because the wavelength of light is much larger than the size of atoms, we can use the overall parameters of the glass, such as the refractive index, rather than the detailed parameters of the atoms that make up the glass to describe The response of glass to light. Correspondingly, when studying the response of materials to other electromagnetic waves, the response of any structure in the material whose scale is much smaller than the wavelength of the electromagnetic wave to electromagnetic waves can also be described by the overall parameters of the material, such as the dielectric constant ε and magnetic permeability μ. By designing the structure of each point of the material, the dielectric constant and magnetic permeability of each point of the material are the same or d...

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Abstract

The invention discloses a broadband wave-absorbing metamaterial. The broadband wave-absorbing metamaterial is virtually divided into a plurality of periodically arranged basic units. Unit configuration; the first subunit includes a first substrate and a first microstructure attached to the first substrate, and the second subunit includes a second substrate and a second substrate attached to the second substrate Microstructure; the first microstructure is a solid square shape, and the first microstructure does not completely cover the surface of the first substrate to which it is attached; the second microstructure completely covers the surface of the second substrate to which it is attached . The invention utilizes the principle of metamaterials and the theory of transmission lines to design wave-absorbing metamaterials. The attenuation of electromagnetic waves can reach about 20dB in the range of 4GHZ to 18GHZ, and has the beneficial effects of wide-band wave-absorbing frequency and strong wave-absorbing performance.

Description

technical field [0001] The invention relates to a wave-absorbing material, in particular to a broadband wave-absorbing metamaterial designed by using the metamaterial theory and the transmission line theory. Background technique [0002] With the rapid development of science and technology, there are more and more technologies and various products that use electromagnetic waves as the medium, and the impact of electromagnetic radiation on the environment is also increasing. For example, radio waves may cause interference to the airport environment, causing aircraft flights to fail to take off normally; mobile phones may interfere with the work of various precision electronic medical devices; even ordinary computers will radiate electromagnetic waves carrying information, which may It is received and reproduced kilometers away, resulting in the leakage of national defense, political, economic, technological and other intelligence. Therefore, controlling electromagnetic pollu...

Claims

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Application Information

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IPC IPC(8): H05K9/00
Inventor 刘若鹏赵治亚寇超锋陈智伟
Owner KUANG CHI INST OF ADVANCED TECH
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