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Metamaterial and metamaterial antenna

A metamaterial and antenna technology, applied in the electromagnetic field, can solve problems such as poor performance of metamaterials, achieve excellent performance and reduce refraction

Active Publication Date: 2014-09-03
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • 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 metamaterial is poor.

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  • Metamaterial and metamaterial antenna

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Embodiment Construction

[0030] 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.

[0031] 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 which are oppositely arranged in an electromagnetic wave transmission direction of a radiation source. An included angle between a connection line from the radiation source to a point on a first surface of the metamaterial and a straight line perpendicular to the metamaterial is set to be theta; the included angle theta uniquely corresponds to a curved surface in the metamaterial; the refractive index of each part on the curved surface uniquely corresponding to the included angle theta is the same; the refractive index of the metamaterial is gradually decreased along with the increase of the included angle theta; and electromagnetic waves penetrate through the metamaterial and are radiated from a second surface of the metamaterial in parallel. The skip of the refractive index of the metamaterial is designed to be a curved surface, so that refraction, diffraction and reflection effects of a skip part can be greatly reduced, and problems caused by mutual interference are solved; and the metamaterial and the metamaterial antenna are relatively high in 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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Patent Type & Authority Patents(China)
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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