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Adjustable electromagnetic array element and smart surface

A technology of regulating components and electromagnetics, applied in the direction of electrical components, circuits, antenna arrays, etc., can solve the problems that RIS cannot meet the performance requirements of multi-bit and multi-polarization, high manufacturing cost and difficulty, poor performance of RIS solutions, etc., and achieve a breakthrough Performance Limits, Reliability Improvement, Stability Improvement Effects

Active Publication Date: 2022-03-01
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the performance of RIS schemes is generally poor. For example, RIS cannot meet the performance requirements of multi-bit and multi-polarization; moreover, the current performance of RIS is limited by factors such as array element layout and dielectric substrate, and it faces high manufacturing cost and difficulty. The problem

Method used

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  • Adjustable electromagnetic array element and smart surface
  • Adjustable electromagnetic array element and smart surface
  • Adjustable electromagnetic array element and smart surface

Examples

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Effect test

example 1

[0116] refer to Figure 1 to Figure 7 , Example 1 gives a specific embodiment of a 4.9GHz dynamic 2+2 (2Bit+dual polarization) reflective RIS1000 (hereinafter referred to as this example). refer to Image 6 with Figure 7 ,in, Image 6 10×10 conventional metasurface 2000 (related technology metasurface), Figure 7 A 10×10 parasitic metasurface 1000 provided for this example. It can be seen that the parasitic metasurface 1000 is formed by nesting and loading parasitic units 120 in the conventional metasurface 2000 . The parasitic metasurface 1000 includes 10×10 electromagnetic array elements 1100 .

[0117] The electromagnetic array element 1100 in this example includes two parts, ie, the reflective part of the microstrip structure and the bias part of the stripline structure.

[0118] The reflective part includes the reflective circuit layer 100, the first dielectric board 510, and the first floor layer 300 from top to bottom; the bias part includes the first floor layer...

example 2

[0137] Example 2 gives a specific embodiment of a striped single-polarization dynamic 2+1 (2Bit+single-polarization) reflective RIS3000, as shown in Figure 14 to Figure 17 As shown, the electromagnetic array element in this example is a single-polarization electromagnetic array element 3100 . Figure 16 with Figure 17 Shown is a schematic diagram of the front and back structures of a 10×10 single-polarization dynamic 2+1 reflective RIS3000 based on a striped parasitic metasurface. The parasitic metasurface includes 10×10 single-polarized electromagnetic array elements 3100 .

[0138] The electromagnetic array element in this example is a single-polarization electromagnetic array element 3100, and the single-polarization electromagnetic array element 3100 also includes a reflection part and a bias part. The reflective circuit layer as the main body of the reflective part includes the reflective unit 110 and the parasitic unit 120 ). The reflective unit 110 and the parasiti...

example 3

[0142] Example 3 provides a specific embodiment of a circularly polarized dynamic 2 Bit reflective RIS4000, such as Figure 18 with Figure 19 As shown, the electromagnetic array element in this example is a circularly polarized electromagnetic array element 4100 . Figure 19 Shown is a schematic diagram of the structure of a 10×10 circularly polarized dynamic 2 Bit reflective RIS4000 based on a honeycomb parasitic metasurface. The parasitic metasurface includes 10×10 circularly polarized electromagnetic array elements 4100 .

[0143] The electromagnetic array element in this example is a circularly polarized electromagnetic array element 4100, and the circularly polarized electromagnetic array element 4100 also includes a reflection part and a bias part.

[0144] refer to Figure 18 , the reflective circuit layer as the main body of the reflective part includes the reflective unit 110 and the parasitic unit 120 . The reflection unit 110 and the parasitic unit 120 are loca...

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Abstract

The embodiment of the present application provides an adjustable electromagnetic array element and a smart surface. Wherein, the adjustable electromagnetic array element includes a reflective unit and a parasitic unit, and the reflective unit includes: at least one reflective metal sheet; at least one adjustable element, the adjustable element is electrically connected to the reflective metal sheet, and the adjustable element is used for adjusting and controlling according to the control signal The electromagnetic parameters of the electromagnetic array element; the parasitic unit is arranged around the reflective metal sheet, and the parasitic unit is coupled and connected with the reflective metal sheet. In the embodiment of the present application, a parasitic smart surface is formed by setting a parasitic unit around the reflective unit of an adjustable electromagnetic array element, and the constitutive parameters of the smart surface are changed by using the coupling effect between the parasitic unit and the electromagnetic array element, thereby reducing the smart surface. The reflection loss improves the stability of the phase response of the smart surface, which is conducive to breaking through the performance limitations of the array element layout and the dielectric substrate on the smart surface, and improving the reliability of the multi-bit multi-polarization RIS solution.

Description

technical field [0001] The embodiments of the present application relate to the technical field of wireless communication, and in particular to controllable electromagnetic array elements and smart surfaces. Background technique [0002] As one of the important technologies of wireless communication, RIS (Reconfigurable Intelligent Surface) has been valued by the industry. RIS can form a specific beam pointing by controlling the electrical parameters of the electromagnetic array element, so as to achieve signal blindness compensation or enhancement in the required area. The reflective RIS can realize the signal coverage of the base station's line-of-sight blind area, so its application potential is huge. Reflective RIS can be divided into 1-bit and multi-bit according to the number of phase states of the reflected electromagnetic wave; it can be divided into single-polarization and multi-polarization according to the polarization characteristics of the reflected wave; it ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/02H01Q19/10H01Q15/24H01Q21/00H01Q1/36
CPCH01Q19/02H01Q19/10H01Q15/24H01Q21/00H01Q1/36
Inventor 傅随道沈楠吴建军毛胤电李名定
Owner ZTE CORP
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