Design of amplifying information metasurface for enhancing signal coverage

Lijie WU; Hanqing YANG; Qiang CHENG; Tiejun CUI

doi:10.11959/j.issn.1000-436x.2022143

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Design of amplifying information metasurface for enhancing signal coverage

Topics: Applications of Information Metamaterials in Mobile Communications | 更新时间：2024-06-05

- Design of amplifying information metasurface for enhancing signal coverage
- Journal on Communications Vol. 43, Issue 12, Pages: 3-12(2022)
- 作者机构：
  
  1. 东南大学信息科学与工程学院，江苏南京 210096
  2. 东南大学毫米波国家重点实验室，江苏南京 210096
  3. 东南大学移动信息通信与安全前沿科学中心，江苏南京 210096
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(6228810001);The National Natural Science Foundation of China(61731010);The National Natural Science Foundation of China(62201139);The National Natural Science Foundation of China(62225108);The Program of Song Shan Laboratory (Included in the Management of Major Science and Program of Henan Province)(221100211300-02);The Program of Song Shan Laboratory (Included in the Management of Major Science and Program of Henan Province)(221100211300-03);The Frontier Leading Technology Basic Research Project of Jiangsu Province(BK20212002);The Frontier Leading Technology Basic Research Project of Jiangsu Province(2242022k30004);The Frontier Leading Technology Basic Research Project of Jiangsu Province(2242022R10185)
- DOI：10.11959/j.issn.1000-436x.2022143
  CLC： TN92
- Online First：2022-12，
  
  Published：25 December 2022
- 稿件说明：
移动端阅览
Lijie WU, Hanqing YANG, Qiang CHENG, et al. Design of amplifying information metasurface for enhancing signal coverage[J]. Journal on Communications, 2022, 43(12): 3-12.
DOI：

Lijie WU, Hanqing YANG, Qiang CHENG, et al. Design of amplifying information metasurface for enhancing signal coverage[J]. Journal on Communications, 2022, 43(12): 3-12. DOI： 10.11959/j.issn.1000-436x.2022143.

摘要

传统信息超表面能对电磁波的幅度和相位做出动态调控，在无线中继中控制电磁波的传播方向，但并不能放大入射波的能量，因此这类超表面的工作距离受限，往往要通过较大的阵面面积来实现信号盲区的有效覆盖。为解决这一问题，提出了一种放大型信息超表面，并通过仿真验证了该信息超表面在2.7～3.1 GHz的宽带范围内具有2 bit的相位调制特性和信号放大能力。同时，通过引入功率分配和功率合成网络，使8个超表面单元组成一个1×8的阵列且只需使用一个放大器，以减少放大器的数量，从而降低硬件成本和系统能耗。仿真结果表明，所提出的放大型信息超表面阵列在宽带范围内同时实现了波束成形和信号能量放大，可应用于基于信息超表面的新型无线中继系统中，为增强无线信号覆盖和减小超表面阵面尺寸提供了一种全新的解决方案。

Abstract

Traditional information metasurfaces can be used in wireless relay systems to control the propagation direction of electromagnetic waves due to their capability to control the amplitude and phase.However

owing to the lack of signal amplification function

these metasurfaces have a limited operating distance.Thus

a large size of metasurfaces is usually demanded to realize the signal coverage of dead zones.To solve this problem

an amplifying information metasurface was designed to realize the 2 bit phase manipulation and signal amplification function within the broad band from 2.7 to 3.1 GHz.Furthermore

a power dividing and combining network was introduced to combine the 1×8 metasurface elements into an array with only one amplifier

which greatly reduced the number of amplifiers

the hardware cost

and the power consumption.The simulation results indicate that the array can realize beamforming and signal amplification over a broad band.Therefore

the proposed amplifying information metasurface array may find important applications in wireless relay systems and provide a new solution to enhancing the signal coverage and reducing the size of the metasurface array.

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references

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