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Metamaterial with electromagnetic wave divergence function

A metamaterial, electromagnetic wave technology, applied in the field of communication, can solve the problems of complex processing and high cost of divergent components

Active Publication Date: 2014-10-01
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a metamaterial with electromagnetic wave divergence function with low cost and simple design, aiming at the defects of high cost and complex processing of divergent components in the prior art

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  • Metamaterial with electromagnetic wave divergence function
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Embodiment Construction

[0026] "Metamaterial" refers to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. Through the orderly design of the structure on the key physical scale of the material, the limitation of some apparent natural laws can be broken through, so as to obtain the supernormal material function beyond the ordinary nature inherent in nature.

[0027] There are three important characteristics of "metamaterials":

[0028] (1) "Metamaterials" are usually composite materials with novel artificial structures;

[0029] (2) "Metamaterials" have extraordinary physical properties (often not available in natural materials);

[0030] (3) The properties of "metamaterials" are jointly determined by the intrinsic properties of the constituent materials and the artificial microstructures in them.

[0031] The invention utilizes metamaterial technology to construct a metamaterial with electromagnetic wave divergence ...

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Abstract

The invention relates to a metamaterial with an electromagnetic wave divergent function. The metamaterial comprises a functional layer which comprises a plurality of mutually parallel flaky layers, and each flaky layer comprises a flaky substrate and a plurality of artificial microstructures adhered to the flaky substrate in an array configuration, wherein the flaky substrate is divided into a plurality of cell blocks. A table cell is formed from each artificial microstructure and a cell block occupied by the artificial microstructure. A plurality of table cells are distributed along a first direction on each flaky layer and the middle position of each flaky layer is provided with a first area with a minimum refractive index. The first area is provided with one table cell or a plurality of table cells with the same refractive index. The refractive indexes of the table cells at both sides of the first area are gradually and respectively increased in a direction deviating from the first area. Each table cell is provided with an anisotropic electromagnetic parameter. According to the metamaterial provided by the invention, the electromagnetic wave divergence can be realized. By utilizing the characteristic of anisotropy of each table cell and rotating an optical axis of the table cell, the position where the electromagnetic wave exits can be controlled.

Description

technical field [0001] The invention belongs to the field of communication, and more specifically relates to a metamaterial with electromagnetic wave divergence function. Background technique [0002] In the prior art, the divergence of electromagnetic waves can be realized by using the divergent antenna. The divergent antenna is not only relatively large in size but also heavy in weight, and has a great dependence on the shape, so it is difficult to design flexibly. At the same time, the loss is large, and the medium is easy to age. The high cost is not conducive to the use of miniaturization. [0003] The divergence of electromagnetic waves can also be achieved by using a lens, but the curved surface of the lens is difficult to process and the cost is high. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a low-cost, simple-designed metamaterial with electromagnetic wave divergence function in view of the defec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
Inventor 刘若鹏季春霖岳玉涛李岳峰
Owner KUANG CHI INST OF ADVANCED TECH
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