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Broadband metamaterial absorbing structure with angle and polarization insensitivity

A sensitivity and wave structure technology, applied to antennas, electrical components, etc., can solve the problems of antenna absorbing rate and bandwidth change drastically, and achieve the effects of low profile height, simple processing flow, and high-efficiency absorbing performance

Active Publication Date: 2021-06-01
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Summary
  • 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 absorbing structure with angle and polarization insensitivity
  • Broadband metamaterial absorbing structure with angle and polarization insensitivity
  • Broadband metamaterial 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

This application discloses a broadband metamaterial wave-absorbing structure with angle and polarization insensitivity. The wave-absorbing structure includes a metal patch unit, a dielectric substrate, and a lower metal floor that are sequentially attached from top to bottom. The metal patch unit includes : A plurality of fan-shaped patches and a regular polygon patch; the regular polygon patch is set at the center of the dielectric substrate, wherein the regular polygon patch is a regular octagon; the fan-shaped patches are circular and equally spaced in the regular polygon On the outside of the patch, the center of the fan-shaped patch is located on the vertices of the regular polygon patch. Through the technical solution in this application, a broadband metamaterial absorbing structure with angle and polarization insensitivity is designed. This absorbing structure is applied to antennas and has excellent absorbing performance in a wide frequency range, and in Under different incident polarization directions and incident angles, the stability of the antenna performance can be guaranteed.

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 Patents(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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