Digital coding unit based on power amplification and metasurface

A digital coding and power amplification technology, applied in electrical components, antennas, etc., can solve the problems of ignoring the modulation characteristics of active amplifiers and unable to arbitrarily modulate the energy of space propagating waves.

Inactive Publication Date: 2020-02-18
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are researches on the introduction of amplifier circuits in metasurfaces, but its role is mainly reflected in the non-reciprocity, while ignoring the modulation characteristics of active amplifiers, and it cannot really achieve arbitrary modulation of space-propagated wave energy.

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  • Digital coding unit based on power amplification and metasurface
  • Digital coding unit based on power amplification and metasurface
  • Digital coding unit based on power amplification and metasurface

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1a , Figure 1b , figure 2 and image 3 As shown, a digital coding unit based on power amplification includes a first metal structure layer 1, a first dielectric plate layer 3, a metal ground 4, a second dielectric plate layer 5 and a second metal structure arranged in sequence from top to bottom layer 6, wherein both the first metal structure layer 1 and the second metal structure layer 6 include a patch 11, a first metal wire 12, a second metal wire 13, a third metal wire 14 and a fourth metal wire 15, the first One end of the metal wire 12 is connected to the frame of the patch 11, the other end is connected to the first end of the power amplifier 2, the second end of the power amplifier 2 is connected to the second metal wire 13, and the third end of the power amplifier 2 is connected to the second metal wire 13. T...

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Abstract

The invention relates to a digital coding unit based on power amplification and a metasurface. The digital coding unit comprises a first metal structure layer, a first dielectric plate layer, a metalground, a second dielectric plate layer and a second metal structure layer which are sequentially arranged from top to bottom; each of the first metal structure layer and the second metal structure layer comprises a patch, a first metal wire, a second metal wire, a third metal wire and a fourth metal wire; one end of the first metal wire is connected with the frame of the patch, the other end of the first metal wire is connected to the first end of the power amplifier, the second end of the power amplifier is connected with the second metal wire, the third end of the power amplifier is connected with the third metal wire, and one end of the fourth metal wire is connected between the two ends of the first metal wire. In comparison with the prior art, the power amplifier with the controllable working voltage is arranged in the digital coding unit, and the voltage is controlled in a digital coding mode, so that random modulation of transmitted electromagnetic wave energy can be realized.

Description

technical field [0001] The invention relates to the technical field of novel artificial electromagnetic materials, in particular to a digital coding unit and a metasurface based on power amplification. Background technique [0002] A metasurface is an artificial two-dimensional structure composed of subwavelength basic units. The amplitude and phase changes of emitted, reflected and scattered waves can be obtained at the interface of the metasurface. By controlling the magnitude and phase response of each basic unit, metasurfaces can effectively control electromagnetic waves in a variety of ways, and thus are widely used in flat lenses, complete absorbers, imaging and detection fields, etc. In recent years, the concept of digitally encoded metasurfaces has been proposed. By introducing digital features, the cells are described by digitally encoding "0" and "1" to represent opposite phase responses. Digitally encoded metasurfaces offer an easier way to control electromagneti...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002H01Q15/0026H01Q15/0086
Inventor陈磊阮颖
OwnerSHANGHAI UNIVERSITY OF ELECTRIC POWER