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Incident Angle Sensing and Adaptive Control of Scattering by Intelligent Metasurface.

Yong Han Liu1, Xu Hang Li1, Ze Tong Zhang1

  • 1State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, 210096, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|August 29, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces an intelligent metasurface for sensing incident electromagnetic (EM) waves and adaptively controlling backward scattering. This technology enables real-time angle detection and customized wave reflection for advanced electronic applications.

Keywords:
adaptive control of scattering waveincident angle sensingintelligent metasurfacelow scatteringretroreflector

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Area of Science:

  • Electromagnetics
  • Materials Science
  • Information Technology

Background:

  • Electromagnetic (EM) wave manipulation is crucial for modern electronic and information systems.
  • Intelligent metasurfaces offer dynamic control over EM wave reception and reflection.

Purpose of the Study:

  • To develop a novel intelligent metasurface for incident EM wave angle sensing.
  • To achieve adaptive control of backward scattering based on detected wave angles.

Main Methods:

  • Utilizing unit cells with dynamic receiving and reflection capabilities.
  • Employing compressive sensing with multiple receiving patterns for angle detection.
  • Programmable reflective phases for customized backward scattering control.

Main Results:

  • A functional prototype integrating metasurface with sensing and feedback control was fabricated.
  • The intelligent metasurface demonstrated autonomous retro-reflection or low scattering functionalities.
  • Experimental results validated the proposed concept and design for adaptive EM wave control.

Conclusions:

  • The intelligent metasurface effectively senses incident wave angles and adaptively controls backward scattering.
  • This technology enables customized EM wave manipulation for advanced applications.
  • The proposed method offers a valid approach for intelligent EM wave management.