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Total-space electromagnetic regulation metasurface and metasurface unit

A super-surface, full-space technology, applied in electrical components, antennas, etc., can solve the problem of inability to achieve fast and accurate electromagnetic waves, and achieve the effect of convenient, flexible and easy-to-adjust adjustment methods.

Pending Publication Date: 2022-06-03
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the traditional form of metasurface cannot realize fast and accurate electromagnetic wave control, and to provide a full-space electromagnetic control metasurface and a metasurface unit. The present invention can control the amplitude, phase and polarity of transmissive electromagnetic waves. The method of polarization state, by which the amplitude and phase of electromagnetic waves in a specific polarization state can be adjusted in real time

Method used

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  • Total-space electromagnetic regulation metasurface and metasurface unit

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Embodiment

[0058] An all-space electromagnetic control transflective metasurface unit adopted in the present invention is as follows: figure 1 shown. The metasurface unit is composed of five layers of metal structure and four layers of dielectric layers. 101 and 104 are metal patches on the top and bottom layers, respectively, and their dimensions are 16mm×16mm. 105 and 106 are metal grounds, and their dimensions are both 18.5 mm×18.5mm, there is a circular isolation hole with a diameter of 0.8mm on the ground to ensure that the ground of the intermediate layer is not directly connected to the metal through hole, 103 is the intermediate layer of the metasurface unit, including two layers of dielectric and transmission line structure ( figure 2 ), the size of the dielectric layer is 18.5mm×18.5mm×0.254mm, the dielectric constant is 3.48, the dimensions of 102 and 107 are 18.5mm×18.5mm×1.524mm, and the dielectric constant is 3.48.

[0059] figure 2 It is the middle layer structure of t...

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Abstract

The invention discloses a total-space electromagnetic regulation and control metasurface and a metasurface unit. The metasurface comprises a first electromagnetic wave coupling / decoupling part, a transmission layer and a second electromagnetic wave coupling / decoupling part which are arranged in sequence. A first patch is arranged on the surface of the first electromagnetic wave coupling / decoupling part; the transmission layer is conducted with the first electromagnetic wave coupling / decoupling part and the second electromagnetic wave coupling / decoupling part through the transmission line structure; the transmission layer is provided with an adjustable element which is used for dividing guided electromagnetic waves in the transmission line structure into reflected waves and transmitted waves and regulating and controlling the amplitude and the phase; and the second electromagnetic wave coupling / decoupling part is provided with a second patch. The invention aims to overcome the problem that rapid and accurate electromagnetic wave regulation and control cannot be realized in a conventional metasurface, and provides a method for regulating and controlling the amplitude phase and the polarization state of transflective electromagnetic waves. Through the method, the amplitude and phase of electromagnetic waves in a specific polarization state can be adjusted in real time.

Description

technical field [0001] The invention belongs to the technical field of wireless communication and is used for regulating electromagnetic wave beams, in particular to a full-space electromagnetic regulating metasurface and a metasurface unit, which are metasurfaces for simultaneously regulating the amplitude, phase and polarization of transmitted and reflected electromagnetic waves. Background technique [0002] With the continuous development of communication technology, new requirements are put forward for new communication equipment; in high-speed wireless communication systems, in order to make the signal generating device provide higher gain and ensure the speed and reliability of data transmission, high-gain, A highly directional antenna array is used to generate directional beams. However, due to the narrow beam generated by the entire array of antennas, it cannot cover the entire communication area. It is very important to point to the target that needs to be communic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002H01Q15/0086
Inventor 施宏宇李国强王鲁一
Owner XI AN JIAOTONG UNIV
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