Luneberg lens antenna

A technology of Lunbo lens antenna and Lunbo ball, which is applied in the field of communication, can solve the problems of difficult processing and high cost of Lunbo lens antenna, and achieve the effect of easy manufacturing and low cost

Active Publication Date: 2013-04-10
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a Lunberg lens antenna with simple processing and low manufacturing cost, aiming at the defects of difficult processing and high cost of the existing Lunberg lens antenna

Method used

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Embodiment Construction

[0021] Such as Figure 1 to Figure 4 As shown, the Luneburg lens antenna according to the present invention includes a metamaterial Luneburg sphere 100 and a feed source 200 arranged on the surface of the metamaterial Luneburg sphere 100, and the metamaterial Luneburg sphere 100 is composed of a plurality of metamaterial flat plates parallel to each other 10 stacked composition, each metamaterial flat plate 10 includes a sheet-like substrate 11 and a plurality of artificial microstructures 12 arranged on the substrate 11, the connection line between the feed source and the center of the sphere is perpendicular to the metamaterial flat plate, and the supermaterial The refractive index at the same polar radius r on the material Lunberian sphere 100 is the same, and the refractive index distribution law of the entire metamaterial Lunberian sphere is:

[0022] n ( r ) = 2 - ...

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Abstract

The invention discloses a luneberg lens antenna which comprises a metamaterial luneberg ball and a feed source arranged on the surface of the metamaterial luneberg ball. The metamaterial luneberg ball is formed by overlying a plurality of parallel metamaterial flat plates, and each metamaterial flat plate comprises a sheet-shaped base material and a plurality of artificial microstructures arranged on the base material. The connection line of the feed source and the ball center is perpendicular to the metamaterial flat plates. The refractive indexes at the same polar radius position on the metamaterial luneberg ball are identical, and the refractive index distribution rule of the whole metamaterial luneberg ball meets the requirements of the traditional luneberg ball. According to the luneberg lens antenna, the metamaterial luneberg ball is formed overlying the sheet-shaped metamaterial flat plates without processing curved surfaces, and therefore the luneberg lens antenna is easy to manufacture and process and low in cost.

Description

technical field [0001] The invention relates to the communication field, and more specifically, relates to a Lunberg lens antenna. Background technique [0002] Lunberg lens is a circular dielectric sphere proposed by Lunberg in the 1940s. The relative permittivity in the dielectric sphere is continuously distributed along the radial direction, and the expression is ε r (r)=2-(r / R) 2 ; Since the magnetic permeability in the dielectric sphere is basically equal to 1, the above formula can also be expressed by the refractive index, namely: This dielectric sphere has the characteristic of focusing electromagnetic waves. The spherical electromagnetic wave emitted by the feed source at the focal point can be transformed into a plane electromagnetic wave by the refraction of the Lunberg lens. Due to this characteristic of Lunberg lens, it can be applied to the design of high-gain antenna. Lunberg lens antennas have been widely used at present. Lunberg lens antennas are usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/06H01Q15/00H01Q15/02
Inventor 刘若鹏季春霖岳玉涛李星昆
Owner KUANG CHI INST OF ADVANCED TECH
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