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Negative-magnetic-permeability meta-material

A negative magnetic permeability and metamaterial technology, applied in the field of metamaterials, can solve the problem that the magnetic permeability cannot be significantly less than 0, and achieve the effect of strengthening the negative magnetic permeability effect and meeting the requirements of the negative magnetic permeability value.

Active Publication Date: 2013-07-03
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a super negative magnetic permeability whose absolute value in the required frequency band is obviously greater than 0 in view of the above-mentioned defects in the prior art that the magnetic permeability cannot be significantly less than 0 to achieve the negative magnetic permeability characteristic. Material

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Embodiment Construction

[0024] The present invention relates to a negative magnetic permeability metamaterial, such as image 3 , Figure 4 As shown, at least one material sheet 1 is included, and each material sheet 1 includes a substrate 2 and a plurality of artificial microstructures 3 attached on the surface of the substrate 2 . The base plate 2 is in the shape of a flat plate, or in the shape of a thin sheet bent into a ring, or in the shape of a grid composed of a plurality of strips interlocked at right angles. Substrate 2 usually uses polytetrafluoroethylene, epoxy resin, FR-4, ceramics, ferrite materials, SiO 2 and other non-metallic materials.

[0025] The artificial microstructures 3 are periodically arranged on the surface of the substrate 2, for example, arranged in a rectangular array, that is, the rows are arranged in the x direction and the columns are arranged in the y direction perpendicular to the x direction, and the spacing between the rows and the columns are respectively Equ...

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Abstract

The invention relates to a negative-magnetic-permeability meta-material, which comprises a substrate made of a nonmetallic material and a plurality of artificial microstructures attached to the substrate and arranged periodically, wherein the artificial microstructures are silk threads of a conductive material; each artificial microstructure comprises an outer frame line which forms an open ring,and two parallel lines which extend from the two tail end points of the outer frame line where an opening is formed to the inside of the open ring; and the outer frame line is provided with a serpentine-shaped bent part. Due to the adoption of the artificial microstructures, the absolute value of the negative magnetic permeability of the meta-material can be increased remarkably, a negative magnetic permeability effect is enhanced, and the requirement of a negative magnetic permeability value under a specific condition is met.

Description

technical field [0001] The invention relates to the field of metamaterials, more specifically, to a negative magnetic permeability metamaterial. Background technique [0002] At present, there have been a lot of research on magnetic permeability in the world. Positive magnetic permeability has been relatively mature, but the current society urgently needs negative magnetic permeability metamaterials, so it plays a great role because it has very special functions, such as quantum Polarization can polarize the incident wave, so it has a wide range of action. For example, in the field of medical imaging, it can enhance the imaging effect of electromagnetic waves. It is also very useful in lens research and has a good application prospect. Therefore, the negative permeance is one of the hot research topics at home and abroad. [0003] In engineering practice, the magnetic permeability usually refers to the relative magnetic permeability, which is the absolute magnetic permeabil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
Inventor 刘若鹏栾琳寇超锋叶金财
Owner KUANG CHI INST OF ADVANCED TECH
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