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Metamaterial antenna housing and antenna system

A technology of metamaterial and radome, applied in the field of radome, can solve the problem of not small energy reflection, and achieve the effect of improving electromagnetic performance

Active Publication Date: 2013-10-23
KUANG CHI INST OF ADVANCED TECH
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  • Abstract
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Problems solved by technology

However, the energy reflection of materials produced by this process is still not small in certain frequency bands, and there is still room for improvement in energy transmission.

Method used

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  • Metamaterial antenna housing and antenna system
  • Metamaterial antenna housing and antenna system
  • Metamaterial antenna housing and antenna system

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Embodiment Construction

[0023] Light, as a kind of electromagnetic wave, when it passes through glass, because the wavelength of light is much larger than the size of atoms, we can use the overall parameters of the glass, such as the refractive index, rather than the detailed parameters of the atoms that make up the glass to describe The response of glass to light. Correspondingly, when studying the response of materials to other electromagnetic waves, the response of any structure in the material whose scale is much smaller than the wavelength of the electromagnetic wave to electromagnetic waves can also be described by the overall parameters of the material, such as the dielectric constant ε and magnetic permeability μ. By designing the structure of each point of the material, the dielectric constant and magnetic permeability of each point of the material are the same or different, so that the overall dielectric constant and magnetic permeability of the material are arranged in a certain order, and ...

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Abstract

The invention discloses a metamaterial antenna housing, which comprises a substrate and a plurality of artificial metal microstructures, wherein the substrate is provided with two opposite side surfaces, and the plurality of artificial metal microstructures are periodically arranged on the two opposite side surfaces. The substrate is virtually divided into a plurality of metamaterial units, and two opposite side surfaces of the metamaterial unit are both attached with one artificial metal microstructure. The artificial metal microstructure comprises an opening metal ring branch provided with an opening, and three straight line metal branches which are arranged inside the opening metal ring and share an endpoint, and an angle formed between two adjacent straight line metal branches is 120 degrees. The reflection coefficient S21 of the metamaterial antenna housing is 20-40dB higher than the transmission coefficient of an ABS material antenna housing, thereby greatly improving the electromagnetic performance of the antenna housing, and being capable of not damaging the mechanical performance of the antenna housing.

Description

technical field [0001] The invention relates to the technical field of radome, in particular to a metamaterial radome and an antenna system. Background technique [0002] Generally, the antenna system is provided with a radome. The purpose of the radome is to protect the antenna system from wind, rain, snow, sand and solar radiation, so that the performance of the antenna system is relatively stable and reliable. At the same time, it reduces the wear, corrosion and aging of the antenna system and prolongs its service life. However, the radome is an obstacle in front of the antenna, which will absorb and reflect the radiated waves of the antenna, change the free space energy distribution of the antenna, and affect the electrical performance of the antenna to a certain extent. [0003] The main reasons for the above phenomenon are: (1) The reflection of the radome wall and the diffraction of the uneven part will cause the electrical axis of the main lobe of the antenna to sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
Inventor 刘若鹏赵治亚易翔
Owner KUANG CHI INST OF ADVANCED TECH
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