Check patentability & draft patents in minutes with Patsnap Eureka AI!

VO2-based broadband terahertz metasurface absorption unit and metasurface absorber

An absorption unit, terahertz technology, applied in electrical components, antennas, etc., can solve problems such as burr absorption peaks, difficult processing, complex structure, etc., and achieve the effects of wide absorption characteristics, simple structure, and low preparation difficulty.

Active Publication Date: 2021-03-12
YUNNAN NORMAL UNIV
View PDF10 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing terahertz metasurface absorbers have the problems of narrow bandwidth and burr absorption peaks; and the microstructure units of the existing terahertz metasurface absorbers are usually complex in structure and difficult to process

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
  • VO2-based broadband terahertz metasurface absorption unit and metasurface absorber
  • VO2-based broadband terahertz metasurface absorption unit and metasurface absorber
  • VO2-based broadband terahertz metasurface absorption unit and metasurface absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto.

[0032] In order to improve the bandwidth and absorption rate of the terahertz metasurface absorber without increasing the design complexity and fabrication difficulty of the terahertz metasurface absorber, the embodiment of the present invention provides a VO based 2 The broadband terahertz metasurface absorption unit, such as figure 1 As shown, the metasurface absorption unit includes: a metal resonant layer 1, a dielectric layer 2 and a terahertz wave total reflection layer 3; the metal resonator layer 1 is located on the upper surface of the dielectric layer 2, and the terahertz wave total reflection layer 3 is located on the dielectric layer 2 the lower surface.

[0033] Such as figure 1 As shown, the metal resonant layer 1 includes: a regular cross-shaped metal patch 101 etched with a regula...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a broadband terahertz metasurface absorption unit based on VO2 and a metasurface absorber. The metasurface absorption unit comprises a metal resonance layer, a dielectric layerand a terahertz wave total reflection layer. The metal resonance layer is located on the upper surface of the dielectric layer, and the terahertz wave total reflection layer is located on the lower surface of the dielectric layer; the metal resonance layer comprises a regular cross-shaped metal patch etched with a regular cross-shaped gap, and two linear gaps, perpendicular to each other, of theregular cross-shaped gap coincide with two center lines of the regular cross-shaped metal patch respectively. VO2 materials are embedded into the two ends of the linear gap. According to the invention, the bandwidth and the absorptivity of the terahertz metasurface absorber can be improved, and the design complexity and the preparation difficulty of the terahertz metasurface absorption unit are not increased.

Description

technical field [0001] The invention belongs to the field of electromagnetic waves and new artificial electromagnetic materials, in particular to 2 Broadband terahertz metasurface absorbing unit and absorber. Background technique [0002] Due to its unique properties, terahertz waves have broad application prospects in many fields such as biomedicine, nondestructive testing, material science, environmental monitoring, safety inspection, information communication, and astronomy. Therefore, how to artificially regulate terahertz waves so that they can be successfully applied in various fields has become the focus of research. [0003] Metasurface, also known as metasurface, is an artificial material formed by periodic arrangement of subwavelength microstructure units in the two-dimensional direction; by designing the shape, size and arrangement of microstructure units , which can make it exhibit electromagnetic properties that natural materials do not have at specific freque...

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): H01Q15/00H01Q17/00
CPCH01Q15/0086H01Q17/007
Inventor 王伟刘驰吴晓婷李育政何瑞
Owner YUNNAN NORMAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com