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Luneberg lens antenna dielectric material as well as preparation method and application thereof

A technology of Lunberg lens antenna and dielectric material, which is applied to antennas, electrical components, etc., can solve the problems of complex process, difficult to adapt to industrialized mass production, long process of lens medium preparation, etc., and achieve uniform distribution, accurate dielectric constant, The effect of dielectric constant precision

Active Publication Date: 2021-04-16
广东盛路通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that no matter whether the spherical or cylindrical Lunberg lens antenna has a long preparation process of the lens medium, the process is complicated, and it is difficult to adapt to industrial mass production.

Method used

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  • Luneberg lens antenna dielectric material as well as preparation method and application thereof
  • Luneberg lens antenna dielectric material as well as preparation method and application thereof
  • Luneberg lens antenna dielectric material as well as preparation method and application thereof

Examples

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Embodiment 1

[0036] The Lunberg lens antenna dielectric material of the present embodiment comprises a polypropylene microporous foamed coiled material with a cell diameter of 1-30 μm, and the relative permittivity of the coiled material gradually decreases along the radial direction gradient, dropping from 2.0 at the center of the coiled material to The outermost layer of the coil is 1.0, and the dielectric constant gradient of the adjacent layer from the inside to the outside is 0.2.

[0037] The preparation method of the Lunberg lens antenna dielectric material of the present embodiment specifically comprises the following steps:

[0038] (1) Soak the polypropylene coil with non-woven paper to make the coil appear as a whole figure 1 The sandwich structure of "polypropylene-impregnation auxiliary material" shown in the autoclave forms a "supercritical carbon dioxide fluid-polypropylene substrate" homogeneous system between the liquid carbon dioxide diffused into the polypropylene membra...

Embodiment 2

[0045] The Lunberg lens antenna dielectric material of the present embodiment comprises a polystyrene microcellular foamed coiled material with a cell diameter of 10-45 μm, and the relative permittivity of the coiled material gradually decreases along the radial direction gradient, descending from 2.0 at the center of the coiled material From 1.0 to the outermost layer of the coil, the dielectric constant gradient of the adjacent layer from the inside to the outside is 0.2.

[0046] The preparation method of the Lunberg lens antenna dielectric material of the present embodiment specifically comprises the following steps:

[0047] (1) Infiltrate the polystyrene coil with non-woven paper, so that the coil as a whole presents a "polystyrene-soaked auxiliary material" sandwich structure, and the liquid carbon dioxide and polystyrene diffused into the polystyrene coil in the autoclave A homogeneous system of "supercritical carbon dioxide fluid-polystyrene substrate" is formed betwe...

Embodiment 3

[0050] The Lunberg lens antenna dielectric material of the present embodiment comprises a polycarbonate microcellular foamed coiled material with a cell diameter of 10-50 μm, and the relative dielectric constant of the coiled material gradually decreases along the radial direction gradient, descending from 2.0 at the center of the coiled material From 1.0 to the outermost layer of the coil, the dielectric constant gradient of the adjacent layer from the inside to the outside is 0.2.

[0051] The preparation method of the Lunberg lens antenna dielectric material of the present embodiment specifically comprises the following steps:

[0052] (1) Infiltrate the polycarbonate coil with non-woven paper, so that the coil as a whole presents a sandwich structure of "polycarbonate-infiltrated auxiliary material", and the liquid carbon dioxide and polycarbonate diffused into the polycarbonate coil in the autoclave A homogeneous system of "supercritical carbon dioxide fluid-polycarbonate...

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Abstract

The invention belongs to the field of lens antennas, and discloses a luneberg lens antenna dielectric material, and a preparation method and an application thereof, the luneberg lens antenna dielectric material comprises a polymer microcellular foaming coiled material with a cell diameter of 10-50 [mu] m; wherein the polymer is at least one selected from polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyurethane and polycarbonate. According to the invention, the polymer coiled material is used as a raw material, and the pore foam size and distribution density of the microcellular foaming polymer can be accurately controlled by adjusting the pressure of an autoclave and the temperature / heating time of a heating pool, so that the dielectric constant with required gradient change is realized; and the luneberg lenses with different diameter requirements can be manufactured by setting the thickness and the number of turns of the coiled material.

Description

technical field [0001] The invention belongs to the field of lens antennas, and in particular relates to a Lumber lens antenna dielectric material and a preparation method and application thereof. Background technique [0002] Luneberg Lens is a lens model proposed by the German-American mathematician Rudolph Karl Luneberg in 1944. The lens was originally designed as a spherical shape, and the refractive index from the center of the sphere to the spherical surface decreases in a gradient along the radial direction. Distribution, this design makes the light incident in any direction always converge to a point on the lens surface after being refracted. The above-mentioned characteristics of Lunberg lens make it widely concerned in the fields of high-gain narrow-beam / multi-beam antenna, target detection, and electromagnetic countermeasures. In the field of wireless communication, the lens antenna is a radio frequency beam forming (RBF: Radio Beam Forming) technology, which is ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L25/06C08L69/00C08L97/02C08L1/02C08J9/12H01Q19/06
CPCY02P20/54
Inventor 丁文方雄波叶桦杨华
Owner 广东盛路通信有限公司
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