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Graphene metasurface with any three-dimensional curved surface and used for electromagnetic wave phase regulation and control

A three-dimensional curved surface and electromagnetic wave technology, applied in the direction of circuits, electrical components, waveguide devices, etc., to achieve effective control of the propagation direction, wide application scenarios, and flexible regulation

Active Publication Date: 2018-02-23
XIDIAN UNIV
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Problems solved by technology

However, the application of the existing graphene metasurface is limited to the amplitude control of electromagnetic waves, and the structure requires a planar structure, and the metasurface with a curved surface structure that can be electrically adjusted to achieve electromagnetic wave phase control has not been involved.

Method used

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  • Graphene metasurface with any three-dimensional curved surface and used for electromagnetic wave phase regulation and control
  • Graphene metasurface with any three-dimensional curved surface and used for electromagnetic wave phase regulation and control
  • Graphene metasurface with any three-dimensional curved surface and used for electromagnetic wave phase regulation and control

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to figure 1 , an arbitrary three-dimensional curved graphene metasurface for electromagnetic wave phase regulation, including a flexible substrate 1, M×N periodically arranged graphene patches 2 printed on one side of the flexible substrate 1 and the other side The ground plate 3 on the top forms a three-dimensional curved surface structure with any shape, wherein M=200, N=200, the graphene patch 2 determines the phase shift Φ that needs to be realized by the position of its center, and passes Control the Fermi level to realize the phase adjustment of the incident electromagnetic wave. It adopts a square structure, the purpose is to produce the same phase shift effect for different polarization modes. The side length of the square is about one tenth of the working wavelength λ. Using graphite The electrically adjustable characteri...

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Abstract

The invention provides a graphene metasurface with any three-dimensional curved surface and used for electromagnetic wave phase regulation and control, and aims to ensure an electromagnetic regulationand control effect while realize the electrical adjustment characteristics of bending the shape into any three-dimensional curved surface and realizing phase control. The graphene metasurface comprises a flexible substrate, graphene patches printed on one side surface of the flexible substrate and in periodical arrangement, and a grounding plate on the other side surface to form the three-dimensional curved surface structure of any shape; and by controlling the Fermi level of the graphene patches, phase adjustment of the incident electromagnetic wave is realized. The graphene metasurface canbe bent to be attached to any three-dimensional curved surface mounting surface, so that application of the metasurface can be more flexible; by virtue of the electrical adjustment characteristics ofthe graphene metasurface, the phase regulation and control of electromagnetic wave can be more convenient; and the graphene metasurface can be used for the fields of a wave beam scanning reflector antenna, a directional back wave scattering surface with any angle, and the like.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave phase control, and relates to a graphene metasurface, in particular to an arbitrary three-dimensional curved graphene metasurface for electromagnetic wave phase control, which can be used in the fields of beam scanning reflector antennas and directional echo scattering surfaces at any angle. . technical background [0002] As a two-dimensional planar carbon structure, graphene has good electrical conductivity and flexibility, and its electromagnetic parameters can be controlled through the Fermi level. Electromagnetic metasurface is a two-dimensional metamaterial with unique electromagnetic properties. According to the main effect of metasurface on electromagnetic waves, it can be divided into amplitude control and phase control. Amplitude control mainly utilizes the interaction between metasurface and electromagnetic waves. The obvious pass band or stop band realizes the spatial fil...

Claims

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Application Information

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IPC IPC(8): H01P1/18H01Q3/36H01Q15/00
CPCH01P1/18H01Q3/36H01Q15/0086
Inventor 杨锐李佳成李冬张澳芳高东兴杨佩
Owner XIDIAN UNIV
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