Low-cost Luneberg lens antenna designed based on 3D printer

A Lumberg lens antenna, 3D printer technology, applied in the direction of antenna, antenna support/installation device, radio wave measurement system, etc., can solve the problems of complex design process and high cost, achieve low processing difficulty, reduce production cost, and simplify Effects of the design and optimization process

CN110336135AInactive Publication Date: 2019-10-15XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-10-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a low-cost Luneberg lens antenna designed based on a 3D printer, which mainly solves the problems of complicated structure and inconvenient processing in the prior art. The antenna comprises a hemispherical lens (1), a circular metal reflecting plate (2), a plastic bracket (3) and a Vivaldi feed source (4). The hemispherical lens is fixed on the upper surface of the circularmetal reflecting plate, and the spherical center coincides with the circular center of the reflecting plate. The Vivaldi feed source is fixed at the focal length position of the hemispherical lens. The hemispherical lens is a meshed filling structure composed of a spherical core (11) and two layers of hemispherical shells (12, 13), wherein a first layer of hemispherical shell is nested outside the spherical core, a second layer of hemispherical shell is nested outside the first layer of hemispherical shell, and the spherical core and the two layers of hemispherical shells have different equivalent dielectric constants and correspond to filling media with different filling rates. The antenna of the invention has the advantages of simple structure, low cost, high gain, convenient processingand manufacturing and good scanning beam consistency in the whole frequency band, and can be used in satellite communication, automobile anti-collision radar and microwave remote sensing.
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Description

technical field

[0001] The invention belongs to the technical field of antennas, and in particular relates to a low-cost Luneberg lens antenna designed based on a 3D printer, which can be used for satellite communication, automobile anti-collision radar and microwave remote sensing. Background technique

[0002] The Lunberg lens antenna has the advantages of high gain, multiple beams, wide scanning angle and low cost, and it consists of two parts: a lens and a feed. in:

[0003] The lens is usually composed of concentric spherical cores with different thicknesses and different dielectric constants and N spherical shells, or a structure of concentric hemispherical cores with different thicknesses and different dielectric constants, N hemispherical shells and reflectors, and N is at least 1;

[0004] The feed source adopts a horn-type aperture antenna or a microstrip patch antenna, and is placed at the focal length of the lens. Moving the position of the feed source on the le...

Examples

Embodiment Construction

[0036] The structure and effects of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] refer to figure 2 , this example is based on a low-cost Lunberg lens antenna designed by a 3D printer, including a hemispherical lens 1, a circular metal reflector 2, a plastic bracket 3 and a Vivaldi feed antenna 4, where the hemispherical lens 1 is fixed on the circular metal reflector 2 surface, and the center of the sphere coincides with the center of the reflector. The plastic support 3 is composed of a chassis 31 and a support 32. The support 32 is engraved with 4 pairs of radial grooves 321 with an interval of 15°. The Vivaldi feed antenna is formed by the plastic support 4. The radial groove 321 is fixed at the focal length position of the hemispherical lens 1, and the circular metal reflector 2 is fixed together with the chassis 31 of the plastic bracket.

[0038] The hemispherical lens 1...