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; plane electromagnetic waves enter a first surface of the artificial composite material and exit from a second surface opposite to the first surface in the form of spherical waves; the electromagnetic waves exiting extend reversely and intersect on a virtual focus of the artificial composite material; the intersection part of an i region and the first surface is the bottom surface; the intersection part of the i region and the second surface is the top surface; supposed the included angle between a line connecting the virtual focus with a point on the top surface of the i region and a straight line vertical to the artificial composite material is theta, and theta uniquely corresponds to a curved surface in the i region; the set of the points with the same theta on the top surface of the i region forms the boundary of the curved surface to which theta uniquely corresponds; the refractive indexes of all parts on the curved surface to which 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 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 enables a plane wave to be refracted by the lens into a spherical wave that appears to radiate from a point source of light at the virtual focus of the lens. At present, the divergence of the lens is realized by the refraction of the spherical shape of the lens. In the process of implementing the present invention, the inventor found that the lens antenna has at least the following technical problems: the lens is large and heavy, which is not conducive to the use of miniaturization; the lens has a great dependence on the shape, and it needs to be more precise to realize the orientation of the antenna Propagation; electromagnetic wave reflection interference and loss are more serious, and electromagnetic energy is reduced...

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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