a metamaterial

A technology of metamaterials and conductive materials, applied in the field of wave-absorbing metamaterials, can solve problems such as narrow response frequency band

Active Publication Date: 2018-02-16
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The above-mentioned conductive geometric structures periodically arranged at the same pitch can only respond to electromagnetic waves of one frequency point or narrower frequency band, and have the disadvantage of narrow response frequency band

Method used

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0054] As a multilayer artificial material composed of a dielectric substrate and an artificial conductive geometric structure arranged on the substrate, metamaterials have some extraordinary physical properties that natural materials do not possess. The artificial conductive geometric structure has electrical and magnetic responses to external electric and magnetic fields on the scale of 1 / 5 to 1 / 10 wavelength, so that the metamaterials exhibit equivalent permittivity and equivalent magnetic permeability as a whole Rate. By designing the pattern and / or size of each conductive geometric structure and arranging the conductive geometric structu...

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Abstract

The present invention provides a metamaterial, comprising: a multi-layer conductive geometric structure layer, each layer of the multi-layer conductive geometric structure layer includes a substrate and a plurality of conductive geometric structures located on the substrate, each layer of conductive geometric structure The spacing between adjacent conductive geometries on the layers is equal, and the spacing between adjacent conductive geometries on at least one conductive geometry layer is not equal to the spacing between adjacent conductive geometries on other conductive geometry layers. The present invention also provides a metamaterial comprising: a multi-layer conductive geometric structure layer, each layer of the multi-layer conductive geometric structure layer includes a substrate and a plurality of conductive geometric structures located on the substrate, the multi-layer conductive geometric structure layer The spacing between adjacent conductive geometric structures among the plurality of conductive geometric structures on at least one conductive geometric structure layer in the structural layer is unequal.

Description

technical field [0001] The invention relates to a wave-absorbing material, in particular to a wave-absorbing metamaterial. Background technique [0002] Absorbing materials refer to a class of materials that can absorb electromagnetic wave energy projected onto its surface. Coating wave-absorbing materials on aircraft, missiles and other weapons and military facilities can absorb reconnaissance waves, attenuate reflected signals, and achieve the stealth effect on radars, thereby breaking through the defense zone of enemy radars. In the increasingly important stealth technology, electromagnetic wave absorbing materials have become the magic weapon and "secret weapon" in electronic countermeasures in modern military. In addition, with the development of modern science and technology, the impact of electromagnetic radiation on the environment is increasing day by day, and the harm to human health has attracted more and more attention. Absorbing materials can also play a huge ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q17/00
Inventor 不公告发明人
Owner KUANG CHI INST OF ADVANCED TECH
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