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Negative permeability metamaterial

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: 2013-03-13
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a negative magnetic permeability whose absolute value is significantly greater than 0 in the required frequency band 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 Super material

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Embodiment Construction

[0024] The present invention relates to a negative magnetic permeability metamaterial, such as figure 1 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 Equal, even if t...

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Abstract

The invention relates to a negative permeability metamaterial which comprises a substrate made of non-metal materials and a plurality of artificial micro-structures adhered onto the substrate and composed of threads made of conducting materials. Every artificial micro-structure comprises a first pair of opened rings, a second pair of opened rings, a first line section and a second line section. Each pair of opened rings comprises two oppositely arranged first half rings which are not contacted with each other, the first line sections are arranged in the first pair of opened rings and connected with the two first half rings, the second pair of opened rings is arranged in the first pair of opened rings and comprises two oppositely arranged second half rings which are not contacted with each other, the second line section is arranged in the second pair of opened rings and connected with the two second half rings, and the first line section is interacted with the second line section. By means of the artificial micro-structures, absolute value of negative permeability of the metamateiral can be obviously improved, effect of the negative permeability is strengthened, and the requirements on the negative permeability can be met under specific conditions.

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 Applications(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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