Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wave-absorbing metamaterial

A technology of metamaterials and substrates, applied in the field of absorbing metamaterials, can solve problems such as narrow absorbing frequency bands, and achieve the effect of increasing absorbing bandwidths

Inactive Publication Date: 2013-05-08
KUANG CHI INST OF ADVANCED TECH +1
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, wave-absorbing metamaterials can only absorb electromagnetic waves of a specific frequency or a small frequency band, and the absorption frequency band is narrow, which cannot meet actual needs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wave-absorbing metamaterial
  • Wave-absorbing metamaterial
  • Wave-absorbing metamaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Specifically, please refer to figure 1 , the absorbing metamaterial 10 includes a plurality of metamaterial sheets 12 stacked together along a direction perpendicular to the surface of the sheet. figure 1 Shown in 12 is the situation where three metamaterial sheets 12 are directly attached to each other on the front and rear surfaces. During specific implementation, the number of the metamaterial sheets 12 can be increased or decreased according to requirements. The metamaterial sheets 12 can also be arranged and assembled together at equal intervals. Generally, we artificially divide each metamaterial sheet 12 into several metamaterial units 14, and allow the size of each metamaterial unit 14 to be less than one-fifth, preferably one-tenth, of the wavelength of the incident electromagnetic wave, so that all The metamaterial sheet 12 produces a continuous response to incident electromagnetic waves. At this time, each metamaterial sheet 12 can be regarded as formed by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a wave-absorbing metamaterial comprising a plurality of metamaterial sheet layers. Each metamaterial sheet layer comprises a base material and a plurality of artificial microstructural groups which are attached to the base material and arranged in an array. Each of the artificial microstructural groups and the portion, occupied by each artificial microstructural group, of the base material are defined as a metamaterial unit. The artificial microstructural group on each metamaterial unit comprises more than one kind of artificial microstructural element. By means of the coupling of the various kinds of the artificial microstructural element of the multiple layers of artificial microstructural groups, the electromagnetic waves within a wide frequency range can be not reflected as much as possible and enter the inside of the wave-absorbing metamaterial to the maximum extent. In addition, high losses are produced by means of the resonance of the wave-absorbing metamaterial, so that the incoming electromagnetic waves can be attenuated rapidly in large amounts and transformed into heat energy or other energy and the wave-absorbing bandwidth of the wave-absorbing metamaterial is improved.

Description

technical field [0001] The invention relates to the field of electromagnetic communication, and more specifically, to a wave-absorbing metamaterial. Background technique [0002] With the rapid development of electronic technology, the application of electromagnetic waves has become more and more extensive, which has brought many conveniences to people's lives, but at the same time, electromagnetic radiation is also increasing, and the problem of electromagnetic pollution has attracted more and more attention. Therefore, the development of wave-absorbing materials that can resist and weaken electromagnetic radiation has become a major topic in material science, and from another aspect, wave-absorbing materials are also a kind of electromagnetic stealth materials, which are widely used in many fields including military affairs. demand. [0003] The working principle of the wave-absorbing material is to let the electromagnetic wave projected onto its surface propagate accordi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00
Inventor 刘若鹏栾琳寇超锋
Owner KUANG CHI INST OF ADVANCED TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com