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Wideband metamaterial antenna housing

A metamaterial and radome technology, applied in the field of radome, can solve the problems of poor wave transmission performance, narrow operating frequency band, no selective wave transmission, etc., to achieve enhanced wave transmission performance, increased anti-interference ability, and reduced material thickness. and the effect of the dielectric constant limitation

Active Publication Date: 2015-04-15
KUANG CHI INST OF ADVANCED TECH
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  • Description
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a wide-band metamaterial radome with filtering function in view of the defects of the prior art that the above-mentioned wave transmission performance is poor and the working frequency band is narrow, and there is no selective wave transmission.

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  • Wideband metamaterial antenna housing
  • Wideband metamaterial antenna housing
  • Wideband metamaterial antenna housing

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Embodiment Construction

[0024] Metamaterials are artificial composite structural materials with supernormal physical properties that natural materials do not have. The orderly arrangement of microstructures can change the relative permittivity and magnetic permeability of each point in space. Metamaterials can achieve refractive index, impedance, and wave transmission performance that ordinary materials cannot have within a certain range, thereby effectively controlling the propagation characteristics of electromagnetic waves. The metamaterial radome based on artificial microstructures can change the relative permittivity, refractive index and impedance of the material by adjusting the shape and size of the artificial microstructure, so as to achieve impedance matching with air to maximize the incident electromagnetic wave. transmission. The frequency can be selected by adjusting the size of the microstructure, and the corresponding transmission and filtering frequencies can be adjusted according to n...

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Abstract

The invention relates to a wideban metamaterial antenna housing which comprises at least one metamaterial slice, each metamaterial slice comprises a first substrate and a plurality of artificial micro-structures distributed on the first substrate in an array manner; each artificial micro-structure consists of a square structure, a gap is arranged at each of the four corners of the square structure, and is provided with a U-shaped structure with an outward opening; and two linear structures which have equal size and are parallel to each other are arranged in the middle of one side of the square structure. The antenna housing has a filtering function while meeting the wideband wave transmitting function, thus reducing the demand on filtering property of the antenna to a great extent; in addition, the working frequency band of the antenna housing ranges from 9GHz to 28GHz, the bandwidth approaches to 20GHz, the wave transmittance efficiency in the frequency band is high, the band elimination property is achieved outside the frequency band, and filtering selectivity can be realized.

Description

Technical field [0001] The present invention relates to a radome, and more specifically, to a wide-band metamaterial radome. Background technique [0002] Metamaterials, commonly known as metamaterials, are a new type of artificial synthetic material, which is composed of a substrate made of non-metallic materials and multiple artificial microstructures attached to the surface of the substrate or embedded in the substrate. The substrate can be virtually divided into a plurality of substrate units arranged in a rectangular array, and each substrate unit is attached with artificial microstructures to form a metamaterial unit. The entire metamaterial is composed of many such metamaterial units, like Crystals are composed of countless lattices in a certain arrangement. The artificial microstructures on each metamaterial unit may be the same or not exactly the same. Artificial microstructures are plane or three-dimensional structures with certain geometric figures composed of metal ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/42H01Q15/12
Inventor 刘若鹏赵治亚方小伟杨树坤王海莲
Owner KUANG CHI INST OF ADVANCED TECH
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