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Electromagnetic lens based on artificial dielectric material

A technology of artificial dielectric materials and dielectric materials, which can be used in electrical components, antennas, radiation unit covers, etc., and can solve problems such as reducing the cross-polarization level of antennas.

Pending Publication Date: 2022-04-29
GUANGZHOU SINAN ANTENNA DESIGN RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different orientations of the tubes, the material possesses desirable anisotropic properties, reducing cross-polarization levels for antennas including cylindrical lenses

Method used

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  • Electromagnetic lens based on artificial dielectric material
  • Electromagnetic lens based on artificial dielectric material
  • Electromagnetic lens based on artificial dielectric material

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Embodiment Construction

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The figures illustrate several exemplary embodiments of cylindrical lenses made of lightweight artificial dielectric material containing short conductive tubes and the ways in which short conductive tubes may be matched to free-space lenses.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0032] Figures 1a-1g is the lens of the first embodiment of the present invention, assembled from three different layers.

[0033] Figure 1a and 1bShows a ...

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Abstract

The cylindrical focusing lens comprises a dielectric outer cover and an artificial dielectric material, and the artificial dielectric material comprises a plurality of multi-layer foaming dielectric material sheets arranged in a layered mode and a plurality of short conductive tubes placed in the foaming dielectric material sheets. Wherein the short conductive tube arranged in the foam foaming medium material sheet forms a circle and a ring surrounding the circle, and the ring made of the foam foaming medium material without the short conductive tube separates the circle formed by the short conductive tube, the circular ring and the dielectric outer cover. The lens of the invention overcomes the defects of known lenses made of light artificial dielectric materials, can be well matched with free space, and is simpler to manufacture compared with known analogues.

Description

technical field [0001] The invention relates to an electromagnetic wave focusing lens made of artificial dielectric material. Background technique [0002] The modern mobile communications market requires multi-beam antennas that can create narrow beams and operate in different frequency bands. The focusing dielectric lens is the main part of the multi-beam antenna. Often multibeam antennas contain Luneberg lenses matched to free space because the dielectric constant ε of such lenses decreases from the center to the outer profile according to the formula ε=2-(R / A)2, where R is the lens center to The distance of an inner point, A is the outer radius of the lens. Patent WO 2019 / 003939 A1 describes Lunberg lenses stacked by disc-shaped members with a thickness in the radially outer region that is smaller than in the central region. The diameter of the focusing lens must be several wavelengths of the electromagnetic wave, and the propagation through the lens can produce a nar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/08H01Q1/42
CPCH01Q15/08H01Q1/42H01Q1/422
Inventor 李梓萌
Owner GUANGZHOU SINAN ANTENNA DESIGN RES INSTCO