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Meta-material antenna housing and antenna system

A metamaterial and radome technology, applied in the field of radome, can solve the problem of high energy reflection and achieve the effect of improving electromagnetic performance

Inactive Publication Date: 2013-10-23
KUANG CHI INNOVATIVE TECH
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  • Abstract
  • Description
  • Claims
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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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  • Meta-material antenna housing and antenna system
  • Meta-material antenna housing and antenna system
  • Meta-material 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 meta-material antenna housing. The meta-material antenna housing comprises a substrate with two side surfaces opposing to each other, and a plurality of artificial metal microstructures periodically distributed on the two opposing side surfaces. Each artificial metal microstructure comprises a first metal branch, a second metal branch and a third metal branch with both centers at the two ends of the first metal branch, fourth metal branches and fifth metal branches, wherein the second metal branch and the third metal branch are perpendicular to the first metal branch; the fourth metal branches perpendicularly extend either from the two ends of the second metal branch towards the direction of the third metal branch or from the two ends of the third metal branch towards the direction of the second metal branch; and each fifth metal branch perpendicularly extends from each fourth metal branch towards the direction of the first metal branch and the fifth metal branches and the first metal branch don't intersect. The meta-material antenna housing provided by the invention has a reflection coefficient S21 lower than that of a pure ABS material antenna housing by a decrease of 0.7 to 0.9 dB and a transmission coefficient S11 higher than that of the pure ABS material by an increase of 10 to 35 dB so that the electromagnetic performance of the antenna housing is greatly improved and the mechanical properties of the antenna housing are not damaged.

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 INNOVATIVE TECH
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