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Electromagnetic metasurface

A technology of electromagnetic super and dielectric boards, applied in the direction of electrical components, antennas, etc., to achieve the effect of symmetrical and simple structure and realize the miniaturization of the system

Active Publication Date: 2020-10-16
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Most existing codeable metasurfaces dynamically manipulate polarization and beamforming by switching pin diodes, but can only achieve duobinary coded phase, and inevitably produce quantization loss in beam steering

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings, wherein the terms "first", "second", and "third" etc. are for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of technical features indicated. It should be noted that if the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. Based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product when it is used, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must...

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Abstract

The invention provides an electromagnetic metasurface. The electromagnetic metasurface comprises a plurality of encoding sub-modules, each encoding sub-module comprises a first dielectric plate, a second dielectric plate, a metal reflection floor, a third dielectric plate and an air pressure switch which are sequentially arranged in the preset direction, a basic unit empty groove and a vertical through hole are formed in each second dielectric plate, and the bottom of each basic unit empty groove is communicated with the corresponding vertical through hole; a liquid metal liquid storage tank is arranged in the third dielectric plate and is communicated with the vertical through hole in the second dielectric plate; the metal reflection floor is composed of a metal patch with a hole, and anopening is formed in the center of the metal reflection floor and communicated with the vertical through hole; and the air pressure switch is arranged at the bottom of the third dielectric plate and is communicated with the liquid metal liquid storage tank in the third dielectric plate.

Description

technical field [0001] The invention relates to the field of artificial electromagnetic materials, in particular to an electromagnetic metasurface. Background technique [0002] In recent years, due to the emergence of electromagnetic metasurface (Electromagnetic Metasurface), the regulation of electromagnetic waves has been developed rapidly. Electromagnetic metasurface is a two-dimensional electromagnetic metasurface, which consists of periodic or aperiodic arrangement of subwavelength metamaterials on an ultrathin surface, and controls the wavefront of electromagnetic waves by introducing a sudden phase change on the wavelength scale. Compared with three-dimensional electromagnetic metasurfaces, electromagnetic metasurfaces greatly reduce the requirements for complex manufacturing processes, and have the advantages of low loss, light weight, and high integration. So far, electromagnetic metasurfaces have shown great promise for novel applications, and various electromagn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0013H01Q15/0026H01Q15/0086
Inventor 万伟康王启东
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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