Infrared transmission microwave broadband metamaterial absorber

A technology of infrared transmission and metamaterials, applied in the direction of antennas, electrical components, etc., can solve the problems of impenetrable incident electromagnetic waves and limited applications, and achieve the effect of simple structure, mature processing technology and efficient absorption

Active Publication Date: 2018-07-27
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
View PDF8 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most metamaterial absorbers use a metal plate as the underlying reflective structure, resulting in the impermeability of inc

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
  • Infrared transmission microwave broadband metamaterial absorber
  • Infrared transmission microwave broadband metamaterial absorber
  • Infrared transmission microwave broadband metamaterial absorber

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Embodiment 1: An infrared-permeable microwave broadband metamaterial absorber, including a plurality of periodically arranged structural units, such as Figure 7 Shown. The structural unit includes an upper metal resonance layer 1, a first dielectric substrate 2, a middle metal resonance layer 3, a second dielectric substrate 4, and a lower metal grid layer 5. The upper metal resonance layer 1 is plated on the first The upper surface of the dielectric substrate 2, the middle metal resonance layer 3 is plated on the lower surface of the first dielectric substrate 2, and the lower metal grid layer 5 is plated on the lower surface of the second dielectric substrate 4, such as figure 2 As shown; the upper metal resonant layer 1 and the middle metal resonant layer 3 are both metal open circular rings, the upper metal resonant layer 1 in this example is two concentric metal open circular rings with different radii, such as image 3 As shown; the middle metal resonance layer 3 ...

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

An infrared transmission microwave broadband metamaterial absorber comprises multiple periodically arranged structural units, wherein each structural unit comprises an upper metal resonant layer, a first layer of dielectric substrate, an intermediate metal resonant layer, a second layer of dielectric substrate and a lower metal mesh layer; the upper metal resonant layer is plated on an upper surface of the first layer of dielectric substrate, the intermediate metal resonant layer is plated on a lower surface of the first layer of dielectric substrate, and the lower metal mesh layer is plated on a lower surface of the second layer of dielectric substrate; and the first layer of dielectric substrate is connected to the second layer of dielectric substrate. The infrared transmission microwavebroadband metamaterial absorber disclosed by the invention can realize absorption and shielding effects on incident electromagnetic waves in 5-20GHz commonly-used microwave radar bands, has an absorption rate of more than 80%, ensures that the electromagnetic waves in an infrared band are permeable, and has very high application prospects in an electromagnetic shielding optical window.

Description

technical field [0001] The invention relates to the technical field of radar stealth and new artificial electromagnetic materials, in particular to an infrared-transmitting microwave broadband metamaterial wave absorber. Background technique [0002] The traditional metamaterial absorber has low absorption intensity for incident electromagnetic waves and narrow absorption bandwidth, which cannot meet the needs in practical applications. [0003] In modern radar and hybrid wireless communication systems, electromagnetic shielding optical windows are often introduced into the design of metamaterial absorbers to meet the needs of multi-spectral applications: that is, while absorbing low-frequency incident electromagnetic waves, the overall structure has high sensitivity to infrared to visible light bands. Transmission target. However, most metamaterial absorbers use a metal plate as the underlying reflective structure, resulting in the impermeability of incident electromagneti...

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
IPC IPC(8): H01Q17/00
CPCH01Q17/00
Inventor 董红星张亚强张龙姜雄伟牟南历
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap