Artificial composite and artificial composite antenna

Abstract

The invention relates to artificial composite and an artificial composite antenna. The artificial composite includes a plurality of areas. Plane electromagnetic wave enters a first surface of the artificial composite and comes out of a second surface opposite to the first surface in form of spherical wave. The coming-out electromagnetic wave reversely extends to intersect with a virtual focus of the artificial composite. An intersection of an area i with the first surface serves as a bottom surface, and an intersection of the area i with the second surface serves as a top surface. An included angle between a straight line perpendicular to the artificial composite and a connecting line of the virtual focus and a point at the top of the area I is theta, and the angle theta corresponds to a curved surface in the area i. A set of points, having the same angle theta on the top surface of the area I, forms an edge of the curved surface only corresponding to the angle theta. The positions on the cured surface only corresponding to the angle theta are equal in refractive index. A generatrix of the curved surface is an elliptic arc. The refractive index of each area decreases with increase of the included angle theta. Jumps of the refractive index are curved, so that refraction, diffraction and reflection effects are reduced.

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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