Journal on Communications ›› 2022, Vol. 43 ›› Issue (12): 3-12.doi: 10.11959/j.issn.1000-436x.2022143

• Topics: Applications of Information Metamaterials in Mobile Communications •     Next Articles

Design of amplifying information metasurface for enhancing signal coverage

Lijie WU1,2, Hanqing YANG1,2, Qiang CHENG1,2,3, Tiejun CUI1,2,3   

  1. 1 School of Information Science and Engineering, Southeast University, Nanjing 210096, China
    2 State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
    3 Frontiers Science Center for Mobile Information Communication and Security, Southeast University, Nanjing 210096, China
  • Revised:2022-10-10 Online:2022-12-25 Published:2022-12-01
  • Supported by:
    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)

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.

Key words: information metasurface, wireless relay system, amplifying information metasurface, signal amplifying

CLC Number: 

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