Electromagnetic space regulation and control system formed by transparent metasurface and application thereof

Abstract

The invention discloses an electromagnetic space regulation and control system formed by a transparent metasurface. The electromagnetic space regulation and control system comprises at least one transparent metasurface, at least one driving and control module and a self-adaptive regulation and control processor, wherein the transparent metasurface is formed by periodically or aperiodically arranging a plurality of metamaterial units; each metamaterial unit is of a light-permeable structure at least formed by compositing an upper transparent film functional layer, a transparent substrate and alower transparent film functional layer in a single-layer or multi-layer mode; the driving and control module drives and controls an electric regulation and control element to realize a function of regulating and controlling parameters such as electromagnetic wave amplitude, phase, frequency, polarization and the like by the transparent metasurface; and the self-adaptive regulation and control processor realizes a strategy and a method of self-adaptive regulation and control and cooperative processing, and even trains and optimizes the strategy and the method. According to the electromagneticspace regulation and control system based on the transparent metasurface, indoor coverage optimization and outdoor wireless transmission optimization can be achieved.

Description

technical field [0001] The invention relates to the technical field of novel artificial electromagnetic material surfaces, in particular to an electromagnetic space control system composed of a transparent metasurface and the application of the technology. Background technique [0002] Metamaterials refer to artificial composite structures formed by units with sub-wavelength scales in a certain macroscopic arrangement (periodic or non-periodic). Because its basic unit and arrangement can be designed arbitrarily, it can break through the limitations of traditional materials that are difficult to precisely control at the atomic or molecular level, and construct unconventional medium parameters that cannot be realized by traditional materials and traditional technologies, and then efficiently and flexibly control electromagnetic waves. , to achieve a series of novel physical properties and applications. In the past two decades, metamaterials have been the international frontie...

AI Technical Summary

Problems solved by technology

[0004] An important advantage of 5G and the next-generation wireless communication field is the application of millimeter wave technology. Although millimeter wave brings wider spectrum utilization bandwidth, faster transmission rate, and larger transmission capacity, its penetration is lower than that of The signal of the traditional Sub-6G frequency band is much worse, which limits the coverage and access of wireless signals for some buildings or vehicles (such as trains)

However, the current electromagnetic control surface research is mostly limited to rigid or flexible dielectric materials such as polyimide and polytetrafluoroethylene, and the designed patterns are mostly etched or electroplated on the dielectric layer by means of metal patches, and then This structure is covered on the metal body to adjust the scattering characteristics of the target body

However, since the structure of the metal patch / dielectric substrate / metal layer cannot be transparent to visible light, it is used in the compartment / cockpit glass, window glass, exterior wall glass / glass facade of vehicles such as trains / buses / ships, etc. In particular, the traditional multi-resonant structure mostly uses multi-layer stacking technology to achieve bandwidth expansion, which is the biggest disadvantage of high cost and difficult manufacturing for transparent electromagnetic control surfaces. The light transmission performance will be seriously deteriorated

[0005] At present, the team disclosed the scheme of transparent electromagnetic metasurface in CN106252897A and CN106356636A in the early stage, which realized the transparency of visible light and has excellent electromagnetic wave control performance, mainly absorbing or dispersing reflected echoes, and they are all passive and non-reconfigurable , once the design is completed, the performance and control capabilities have been solidified, and cannot be adaptively regulated according to changes in the external electromagnetic environment and scenarios

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