Broadband metamaterial wave-absorbing structure with angle and polarization insensitivity

A sensitivity and wave structure technology, applied in the direction of electrical components, antennas, etc., can solve the problems of antenna absorption rate and bandwidth change drastically, and achieve the effect of low profile height, simple processing flow, and multiple design degrees of freedom

Active Publication Date: 2020-04-17
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although researchers have proposed many technologies and methods to improve the working bandwidth of antennas, such as multi-resonant structures, concentrated element loading and multi-layer structures, etc., the absorption rate and bandwidth of antennas vary in different polarization directions and incident angles. severe

Method used

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  • Broadband metamaterial wave-absorbing structure with angle and polarization insensitivity
  • Broadband metamaterial wave-absorbing structure with angle and polarization insensitivity
  • Broadband metamaterial wave-absorbing structure with angle and polarization insensitivity

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Embodiment Construction

[0028] In order to better understand the above-mentioned purpose, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0029] In the following description, a lot of specific details are set forth in order to fully understand the application, however, the application can also be implemented in other ways different from those described here, therefore, the protection scope of the application is not limited by the following disclosure Limitations of specific embodiments.

[0030] like figure 1 and figure 2 As shown, this embodiment provides a broadband metamaterial wave-absorbing structure with angle and polarization insensitivity. The wave-absorbing structure includes a metal p...

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Abstract

The invention discloses a broadband metamaterial wave-absorbing structure with angle and polarization insensitivity. The wave-absorbing structure comprises a metal patch unit, a dielectric substrate and a lower metal floor which are sequentially pasted from top to bottom. The metal patch unit comprises a plurality of fan-shaped patches and a regular polygon patch; wherein the regular polygon patchis arranged at the center of the dielectric substrate, and the regular polygon patch is a regular octagon; the fan-shaped patches are circular and distributed on the outer side of the regular polygonpatch at equal intervals, and the circle centers of the fan-shaped patches are located on the vertex of the regular polygon patch. With application of the technical scheme in the invention, the broadband metamaterial wave-absorbing structure with angle and polarization insensitivity is designed, the wave-absorbing structure is applied to an antenna and has excellent wave-absorbing performance ina broadband range and can ensure the stability of antenna performance under different incident polarization directions and incident angles.

Description

technical field [0001] The present application relates to the technical field of antennas, in particular, to a broadband metamaterial wave-absorbing structure with angle and polarization insensitivity. Background technique [0002] Metamaterials refer to some artificial composite structures or composite materials that have extraordinary physical properties that natural materials do not have. Through the orderly design of the structure on the key physical scale of the material, it is possible to break through the limitations of some natural laws, thereby obtaining functions beyond the ordinary physical properties inherent in conventional materials in nature. [0003] As people's attention to electromagnetic metamaterials is gradually increasing, the scientific research progress on it is also gradually accelerating. Electromagnetic metamaterials can couple the electromagnetic components of electromagnetic waves incident on the corresponding frequency band of the material, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00H01Q15/00
CPCH01Q15/0086H01Q17/008
Inventor 高强李小秋周志鹏孙磊
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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