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

Narrow-band terahertz non-reciprocal wave absorber based on sandwich structure

A wave absorber and sandwich technology used in the field of terahertz devices

Inactive Publication Date: 2020-10-20
FUZHOU UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a narrow-band terahertz non-reciprocal absorber based on a sandwich structure, which solves the problem of polarization stability of existing terahertz absorbers and has non-reciprocity for incident terahertz waves

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
  • Narrow-band terahertz non-reciprocal wave absorber based on sandwich structure
  • Narrow-band terahertz non-reciprocal wave absorber based on sandwich structure
  • Narrow-band terahertz non-reciprocal wave absorber based on sandwich structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Such as Figure 1-7 As shown, a narrow-band terahertz non-reciprocal absorber based on a sandwich structure, the absorber includes a plurality of absorbing units arranged periodically, and the absorbing unit is a one-way absorber shaped like a sandwich structure A wave unit; the absorbing unit includes a first conductor structure 1, a wave-absorbing medium layer 3 and a second conductor structure 2 which are sequentially stacked in the wave-absorbing direction; wherein the first conductor structure, the second The conductor structure forms a terahertz wave resonant coupling structure; when the terahertz wave enters the absorbing unit along the absorbing direction, the terahertz wave oscillates and reflects back and forth between the first conductor structure and the second conductor structure, and the absorbing medium layer is The terahertz wave between the first conductor structure and the second conductor structure is absorbed.

[0028] When the terahertz wave enters...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a narrow-band terahertz non-reciprocal wave absorber based on a sandwich structure. The wave absorber comprises a plurality of wave absorbing units which are periodically arranged; and each wave absorbing unit is a unidirectional wave absorbing unit in the shape of a sandwich structure. Each wave absorbing unit comprises a first conductor structure, a wave absorbing dielectric layer and a second conductor structure which are sequentially stacked in a wave absorbing direction. The first conductor structure and the second conductor structure which are arranged in the waveabsorbing direction form a terahertz wave resonance coupling structure; when terahertz waves enter the wave absorbing unit in the wave absorbing direction, the terahertz waves oscillate and are reflected back and forth between the first conductor structure and the second conductor structure, and the wave absorbing dielectric layer absorbs the terahertz waves between the first conductor structure and the second conductor structure. The terahertz wave absorber solves the problem of polarization stability of an existing terahertz wave absorber, and has nonreciprocity for incident terahertz waves.

Description

technical field [0001] The invention relates to the technical field of terahertz devices, in particular to a narrow-band terahertz non-reciprocal wave absorber based on a sandwich structure. Background technique [0002] Terahertz waves generally refer to electromagnetic waves with a wavelength between 3000 μm and 30 μm, between microwave and infrared bands. Terahertz waves are different from electromagnetic waves in other frequency bands because of their transient, broadband, coherent, and low-energy properties. And other application fields show unprecedented application value. [0003] A terahertz absorber refers to a functional device that absorbs incident terahertz wave energy by using a wave-absorbing coating or a wave-absorbing structure in the terahertz frequency band. It is generally used in thermal radiometers, chemical and biomedical sensing, and photoelectric detection. , light-to-heat conversion and other fields. Existing terahertz absorbers are generally comp...

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
CPCH01Q17/00
Inventor 王向峰胡志强高焘黄峰
Owner FUZHOU UNIV
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