Vortex electromagnetic metasurface structure

A surface structure, electromagnetic super technology, applied in the direction of electrical components, antennas, etc., can solve the problems of vortex beams that are difficult to be compatible with ultra-bandwidth, high-gain work efficiency, polarization insensitivity, etc., to achieve high gain and easy implementation , the effect of ultra-wide working bandwidth

Pending Publication Date: 2020-09-18
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] In view of the above analysis, the embodiment of the present invention aims to provide a vortex electromagnetic metasurface structure to solve the problem that the vortex beam generated by t

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  • Vortex electromagnetic metasurface structure
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  • Vortex electromagnetic metasurface structure

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Embodiment Construction

[0041] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0042] The vortex beam generated by the existing vortex electromagnetic metasurface structure is difficult to be compatible with ultra-wideband, polarization insensitivity and high gain performance, resulting in the problem of low working efficiency of the vortex electromagnetic metasurface structure. To this end, the present application proposes a vortex electromagnetic metasurface structure, which includes a plurality of vortex electromagnetic metasurface units arranged in a two-dimensional array. At the same time, this application uses CST simulation software to simulate the performance of ...

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Abstract

The invention relates to a vortex electromagnetic metasurface structure, which belongs to the technical field of microwave band electromagnetic wave regulation and control, and solves the problem thatvortex beams generated by an existing vortex electromagnetic metasurface structure are difficult to be compatible with performances such as ultra-wideband, polarization insensitivity and high gain, so that the working efficiency is relatively low. The vortex electromagnetic metasurface structure comprises a plurality of vortex electromagnetic metasurface units arranged in a two-dimensional arraymode. The vortex electromagnetic metasurface unit comprises an I-shaped metal unit, a middle layer dielectric substrate and a bottom layer metal grounding plate which are sequentially stacked from topto bottom; the rotation angle of the I-shaped metal unit on the vortex electromagnetic metasurface unit is determined based on the vortex phase. Vortex wave beams generated based on the vortex electromagnetic metasurface structure can be compatible with ultra-wideband, polarization insensitivity, high gain and other performance at the same time, and the working efficiency of the vortex electromagnetic metasurface structure is improved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wave regulation in the microwave segment, in particular to a vortex electromagnetic metasurface structure. Background technique [0002] Optical vortex means that when the light wave has a helical phase wavefront structure, the wavefront will rotate in a helical manner around a line in the direction of propagation. This type of special light wave or light field is called optical vortex. Optical vortex has Helical phase wavefront and orbital angular momentum (OAM) have important potential application value in the fields of microparticle manipulation, atomic optics, spatial optical information transmission and processing, etc. It is an emerging field in modern optics. The generation, modulation, and Problems such as detection and application have become research hotspots in the field of optics. [0003] With a theoretically infinite number of non-interfering orthogonal channels and addition...

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Application Information

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IPC IPC(8): H01Q15/00
CPCH01Q15/0026H01Q15/0046H01Q15/0086
Inventor 沈晓鹏孔祥林王伟华韩奎赵雷李海鹏
Owner CHINA UNIV OF MINING & TECH
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