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Full-band Strong Magnetic Response Broadband Negative Permeability Metamaterial

A negative magnetic permeability, metamaterial technology, applied in antennas, instruments, optics, etc., to achieve the effect of enhancing the magnetic field, facilitating processing and system integration, and having a thin single-layer structure

Active Publication Date: 2021-06-18
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and deficiencies existing in the design of existing negative magnetic permeability artificial metamaterials, the present invention provides a full-band strong magnetic response broadband negative magnetic permeability metamaterial

Method used

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  • Full-band Strong Magnetic Response Broadband Negative Permeability Metamaterial
  • Full-band Strong Magnetic Response Broadband Negative Permeability Metamaterial
  • Full-band Strong Magnetic Response Broadband Negative Permeability Metamaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The microwave band strong magnetic responsive wideband with a hole-like structure is superficial, which is composed of a metal square ruthenium resonant structure 2 of a good conductor gold by a square aperture-like substrate 1 and material of a material which are a polyimide. Attach figure 1 Indicated. The dielectric constant of polyimide is 3.5, and the loss is 0.0027 Siemens / m. As an example, the period of the structural unit is 10 mm, the thickness of the metal resonant structure is 0.002 mm, and the thickness of the single layer resonant structure is 0.1 mm.

[0029] figure 2 A schematic diagram of the negative magnetic conductivity super material in this embodiment in TE wave vertically incident, Figure 4 The magnetic conductivity and transmittance of the frequency of the frequency and the transmittance with the frequency of the frequency when the negative magnetic conductivity super material in this embodiment is incident. The resonance frequency of the negative m...

Embodiment 2

[0032] The terahertz wave section of the pore structure is strong magnetically responsive broadband with a negative magnetic conductivity super material, which is composed of a metal square ruthenium having a polyimide of a polyimide. as attached figure 1 Indicated. The dielectric constant of polyimide is 3.5, and the loss is 0.0027 Siemens / m. As an example, the structure unit has a period of 30 microns, a thickness of a metal resonant structure having a thickness of 0.2 microns, and a single layer resonant structure having a thickness of 3.5 microns.

[0033] figure 2 A schematic diagram of the negative magnetic conductivity super material in this embodiment in TE wave vertically incident, Figure 6 The magnetic conductivity and transmittance of the frequency of the frequency and the transmittance with the frequency of the frequency when the negative magnetic conductivity super material in this embodiment is incident. The resonance frequency of the negative magnetic conductivit...

Embodiment 3

[0036] The optical wave section of the hole-like structure is strong magnetic responsive broadband with a negative magnetic thermal magnetic responsive, which is composed of a square aperture-like substrate 1 and material of a polyimide as a metal square ruthenium structure 2, such as Attach figure 1 Indicated. The dielectric constant of polyimide is 3.5, and the loss is 0.0027 Siemens / m. As an example, the period of the structural unit is 400 nm, the thickness of the metal resonance structure is 60 nm, and the thickness of the single layer resonant structure is 39 nm.

[0037] figure 2 A schematic diagram of the negative magnetic conductivity super material in this embodiment in TE wave vertically incident, Figure 8 The magnetic conductivity and transmittance of the frequency of the frequency and the transmittance with the frequency of the frequency when the negative magnetic conductivity super material in this embodiment is incident. The resonance frequency of the negative ma...

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Abstract

The invention discloses a strong magnetic resonance single-layer metamaterial suitable for all bands. The single-layer metamaterial is composed of a porous substrate and a good conductor metal resonant structure attached to the substrate hole. When the electromagnetic wave is vertically incident, the magnetic field component directly excites the magnetic resonance of the metamaterial, thereby obtaining high positive and negative magnetic permeability near the resonance frequency. The invention has the ability to directly excite strong magnetic responses in microwave, terahertz wave and light bands only by adjusting the structural parameters of the metamaterial under the same structural form. The metamaterial has the advantages of simple structure, convenient processing, thin thickness and small volume, and can be applied in the design of negative refractive index metamaterials and other fields.

Description

Technical field: [0001] The present invention relates to a negative magnetic conductivity super material, and more particularly to a well-known system full-band strong magnetic responsive wideband negative magnetic permeability super material. Background technique: [0002] Super material is an artificial composite, a singular electromagnetic response that does not have to generate nature of the external magnetic field by designing its unit structure. The electromagnetic properties of the super material depends on its unit structure, that is, the microstructure. Since the cell size of the microstructure is smaller than the wavelength of the incident electromagnetic wave, the ultra material can be considered uniform, i.e., the electromagnetic characteristics of the super material can be characterized by an equivalent dielectric constant and equivalent magnetoresidivity of the space. . The special properties of super material have attracted great interest in researchers at home and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00G02B1/00
Inventor 张彬凌芳钟哲强张源
Owner SICHUAN UNIV
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