Broadband Metamaterial Radome and Antenna System

A metamaterial and radome technology, applied in the field of radome, can solve the problems of narrow working frequency band, poor wave transmission performance, and lack of selective wave transmission, etc., to achieve enhanced wave transmission performance, increased anti-interference ability, and reduced material thickness and the limiting effect of the permittivity

Active Publication Date: 2017-04-05
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 and antenna 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. system

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  • Broadband Metamaterial Radome and Antenna System
  • Broadband Metamaterial Radome and Antenna System
  • Broadband Metamaterial Radome and Antenna System

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Embodiment Construction

[0025] Metamaterials are artificial composite structural materials with extraordinary physical properties that natural materials do not have. Through the orderly arrangement of microstructures, the relative permittivity and magnetic permeability of each point in space can be changed. Metamaterials can realize within a certain range the refractive index, impedance, and wave-transmitting properties that ordinary materials cannot possess, so that they can effectively control the propagation characteristics of electromagnetic waves. The metamaterial radome based on the artificial microstructure 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 the air to maximize the incident electromagnetic wave. transmission. And the frequency can be selected by adjusting the size of the microstructure, and the corresponding wave-transmitting and filtering...

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Abstract

The invention relates to a broadband metamaterial antenna housing and an antenna system. The broadband metamaterial antenna housing comprises at least one metamaterial sheet layer, wherein each metamaterial sheet layer comprises a first substrate and a plurality of artificial microstructures which are arranged on the first substrate in an array mode, and the sizes of the artificial microstructures are the same. Each artificial microstructure comprises a mouth-shaped structure, a snowflake-shaped structure is arranged at the center position of each mouth-shaped structure, and a T-shaped structure is arranged in the middle of each edge of each mouth-shaped structure. According to the broadband metamaterial antenna housing, the artificial microstructures in specific shapes are attached to the first substrates to obtain needed electromagnetic responses, wave-transparent performance of the antenna housing based on metamaterials is strengthened, and anti-interference capacity is increased. The working band of the antenna housing is 15-18GHz, wave-transparent efficiency within the band is high, and losses are fewer. The broadband metamaterial antenna housing has the band elimination characteristic when the working band is out of 15-18GHz, and selective filtering can be achieved.

Description

technical field [0001] The present invention relates to a radome, and more particularly, to a broadband metamaterial radome and an antenna system. Background technique [0002] Metamaterials, commonly known as metamaterials, are a new type of 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 interior of the substrate. The substrate can be virtually divided into multiple substrate units arranged in a rectangular array. Each substrate unit is attached with artificial microstructures to form a metamaterial unit. The entire metamaterial is composed of many such metamaterial units, just like Crystals are composed of countless crystal lattices arranged in a certain way. The artificial microstructures on each metamaterial unit may or may not be identical. Artificial microstructures are planar or three-dimensional structures with certain geometric f...

Claims

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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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