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Updated: May 10, 2025

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Experimental Demonstration of Sensing Using Hybrid Reconfigurable Intelligent Surfaces.

Idban Alamzadeh1, Mohammadreza F Imani1

  • 1School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, AZ 85287, USA.

Sensors (Basel, Switzerland)
|April 28, 2025
PubMed
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This study presents a practical hybrid reconfigurable intelligent surface (HRIS) prototype for enhanced wireless communication. The HRIS experimentally demonstrates angle of arrival detection, paving the way for autonomous networks.

Area of Science:

  • Electrical Engineering
  • Electromagnetics
  • Wireless Communication

Background:

  • Reconfigurable intelligent surfaces (RISs) require environmental sensing for effective radio wave manipulation.
  • Integrated sensing leads to hybrid reconfigurable intelligent surfaces (HRISs), but practical design challenges are often overlooked in simulations.

Purpose of the Study:

  • To present an experimental proof-of-concept for a hybrid reconfigurable intelligent surface (HRIS).
  • To address practical design considerations for HRIS fabrication and experimental validation, moving beyond simulation-based studies.

Main Methods:

  • Designed and fabricated an HRIS prototype with conventional and hybrid elements using standard PCB technology.
  • Integrated a sensing mechanism utilizing signals coupled to hybrid elements for environmental information acquisition.
Keywords:
AoA detectioncompressive sensingmetasurfacereconfigurable intelligent surface

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  • Experimentally validated the HRIS sensing capabilities through angle of arrival (AoA) detection.

    • Main Results:

    • Demonstrated the feasibility of a practical HRIS design incorporating both sensing and reconfigurable reflection.
    • Successfully achieved angle of arrival (AoA) detection using the fabricated HRIS prototype.
    • Highlighted the importance of practical design considerations for experimental HRIS validation.

    Conclusions:

    • The developed HRIS serves as a viable experimental platform for advanced wireless applications.
    • The HRIS prototype shows potential for enabling smart, autonomous wireless communication, power transfer, and sensing systems.
    • This work bridges the gap between HRIS simulations and real-world implementation through experimental validation.