a metamaterial

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 ...

AI Technical Summary

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

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