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Metamaterial and metamaterial antenna

A metamaterial and antenna technology, applied in the electromagnetic field, can solve problems such as poor lens performance

Active Publication Date: 2015-04-22
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-performance metamaterial and metamaterial antenna for the defects of the prior art that the above-mentioned refraction, diffraction and reflection are relatively large and the performance of the lens is poor.

Method used

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  • Metamaterial and metamaterial antenna
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  • Metamaterial and metamaterial antenna

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Embodiment Construction

[0035] figure 2 It is a schematic diagram of a metamaterial condensing electromagnetic waves according to an embodiment of the present invention, and the metamaterial 10 is relatively arranged in the electromagnetic wave propagation direction of the radiation source.

[0036] As common knowledge, we know that the refractive index of electromagnetic waves is related to In direct proportion, when a beam of electromagnetic wave propagates from one medium to another medium, the electromagnetic wave will be refracted. When the refractive index distribution inside the material is non-uniform, the electromagnetic wave will be deflected to a position with a relatively large refractive index. Through By designing the electromagnetic parameters of each point in the metamaterial, the refractive index distribution of the metamaterial can be adjusted, thereby achieving the purpose of changing the propagation path of electromagnetic waves. According to the above principles, the electroma...

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Abstract

The invention relates to a metamaterial and a metamaterial antenna. The metamaterial is arranged in the transmission direction of the radiation source correspondingly; a line formed by connecting the radiation source and a point on first surface of the metamaterial forms an included angle theta with a straight line perpendicular to the metamaterial, the included angle theta uniquely corresponds to a curved surface in the metamaterial and every point in the curved surface uniquely corresponding to the included angle theta has same refractive index, the generatrix of the curved surface is a parabola; the refractive index of the metamaterial reduces gradually with the increase of the included angle theta; and the electromagnetic waves are shot out parallelly from top surface of every torus after going through the metamaterial. The curve jumping of the refractive index of the metamaterial is designed, so that refraction, diffraction and reflection effects at the jumping position are greatly reduced; mutual interference is reduced; and the metamaterial and the metamaterial antenna have high performance.

Description

technical field [0001] The invention relates to the field of electromagnetics, and more specifically, to a metamaterial and a metamaterial antenna. Background technique [0002] In conventional optical devices, a lens can make the spherical wave radiated by a point light source located at the focal point of the lens become a plane wave after being refracted by the lens. At present, the convergence of the lens is realized by the refraction of the spherical shape of the lens, such as figure 1 As shown, the spherical wave emitted by the radiator 30 is converged by the spherical lens 40 and then emitted as a plane wave. In the process of implementing the present invention, the inventor found that the lens antenna has at least the following technical problems: the spherical lens 40 is bulky and heavy, which is not conducive to the use of miniaturization; Realize the directional propagation of the antenna; the electromagnetic wave reflection interference and loss are relatively ...

Claims

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Application Information

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IPC IPC(8): H01Q15/00H01Q15/02H01Q19/06
Inventor 刘若鹏季春霖岳玉涛
Owner KUANG CHI INST OF ADVANCED TECH
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