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Reconfigurable intelligent metasurface capable of performing 1/2/3 bit phase modulation under normal incidence and large inclined incidence angle

A technology of oblique incidence and normal incidence, applied in electrical components, antennas, etc., can solve problems such as integration difficulties, incompatibility with low-cost large-scale industrial production, etc., to reduce interference, reduce design complexity, and high-bit encoding phase control Effect

Active Publication Date: 2021-11-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the traditional PIN-loaded phase-shift reconfigurable smart metasurfaces require more active devices in higher bit-coding design cases, which makes it more difficult to integrate them into a finite-sized cell structure. , and this does not meet the requirements of low-cost large-scale industrial production

Method used

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  • Reconfigurable intelligent metasurface capable of performing 1/2/3 bit phase modulation under normal incidence and large inclined incidence angle
  • Reconfigurable intelligent metasurface capable of performing 1/2/3 bit phase modulation under normal incidence and large inclined incidence angle
  • Reconfigurable intelligent metasurface capable of performing 1/2/3 bit phase modulation under normal incidence and large inclined incidence angle

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Embodiment 1

[0033] See Figure 1 - Figure 7 This embodiment provides a reconfigurable smart super surface that can perform 1 / 2 / 3 bits at a positive incident and a large incident angle, and specifically includes: N basic unit cycle arrangement, each column unit composition sub-array Wherein, the sub-array is controlled by the same signal, and each of the sub-array is provided by the control circuit.

[0034] Specifically, in the present embodiment, the basic unit is from top to bottom including:

[0035] The first layer is composed of two metal rectangular sheets 2 connected by the beam diode 1;

[0036] The second layer is the dielectric substrate 3;

[0037] The third layer is a metal layer 4;

[0038] Among them, a row of metal holes 5 is also provided between the first layer and the third layer.

[0039] Specifically, in the present embodiment, the variation of 0.6 to 2.6 pF when the inverted feedthrough 0 to 30 V voltage changes.

[0040] Specifically, in the present embodiment, at differe...

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Abstract

The invention discloses a reconfigurable intelligent metasurface capable of performing 1 / 2 / 3 bit phase modulation under normal incidence and a large inclined incidence angle. The intelligent metasurface is characterized in that n basic units are periodically arranged, each column of units form a sub-array, the sub-arrays are controlled by the same signal, and each sub-array is provided with a control signal by a control circuit. A variable capacitance diode is introduced as a capacitance adjustable device, so that a continuous and large-margin dynamic adjustable range of the phase of the reflected wave of the electromagnetic wave incident to the device is realized, and the control mode is simple and rapid. A low-loss adjustable device is introduced, so that high energy efficiency can be maintained when continuous dynamic phase change is realized. Through introduction of mutual coupling among a large number of metal column isolation units, stable amplitude and phase response can still be kept under large-angle oblique incidence, and compared with a traditional design, the intelligent metasurface is more robust.

Description

Technical field [0001] The present invention relates to the field of reconstructed intelligent hypersola technology, and more particularly to a reconfigurable smart super surface that can perform 1 / 2 / 3 ratio at a positive incident and a large incident angle. Background technique [0002] Reconstructing intelligent super surface, due to its huge potential in controlling the propagation environment, thereby improving the performance of wireless communication networks, has been widely concerned in the wireless field. First, there is experimental results show that due to the dispersion characteristics of space, the traditional reconfigurable intelligent hyper surface phase response is very sensitive to electromagnetic wave angle, so traditional reconfigurable smart super surface design can only work in vertical incident and small. In the range of incident angles, this is particularly obvious in a higher bit-coded reconfigurable smart hyper surface, which has a more low-capacity and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0086H01Q15/002
Inventor 程强梁竟程崔铁军
Owner SOUTHEAST UNIV