Artificial composite material and artificial composite material antenna

Abstract

The invention relates to an artificial composite material and an artificial composite material antenna. The artificial composite material is characterized in that the artificial composite material is divided into a plurality of regions; electromagnetic waves enter a first surface of the artificial composite material and exit from a second surface opposite to the first surface; the intersection part of an i region and the first surface is the bottom surface of the i region; the intersection part of the i region and the second surface is the top surface of the i region; supposed the included angle between a line connecting a radiation source with a point on the bottom surface of the i region and a straight line vertical to the artificial composite material is theta, and the included angle theta uniquely corresponds to a curved surface in the i region; the set of the points with the same included angle theta on the bottom surface of the i region forms the boundary of the curved surface to which the included angle theta uniquely corresponds; the refractive indexes of all parts on the curved surface to which the included angle theta uniquely corresponds are the same; and the refractive index of each region gradually decreases with the increase of the included angle theta. The artificial composite material and the artificial composite material antenna have the following beneficial effects: the jump of the refractive indexes of the artificial composite material is designed into the shape of a curved surface, thus reducing the refraction, diffraction and reflection effects in jump positions.

Description

technical field [0001] The present invention relates to the field of electromagnetism, and more particularly, to artificial composite materials and artificial composite material antennas. 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 reflecti...

AI Technical Summary

Problems solved by technology

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

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