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Phase and amplitude simultaneously coding metasurface with multi-frequency and multifunctional electromagnetic

Chengxin Cai1,2,3, Yinfei Li4,5,6,7, Mingxing Li4,5,6

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This study presents a novel multifunctional metasurface capable of simultaneous phase and amplitude coding at dual frequencies. This breakthrough enhances 5G/6G communication systems by enabling advanced wave manipulation and diverse functionalities.

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Area of Science:

  • Electromagnetic Metamaterials
  • Applied Electromagnetics
  • Wireless Communication Systems

Background:

  • Multifunctional metasurfaces offer enhanced capacity and performance in compact 5G/6G systems.
  • Existing metasurfaces achieve wavefront manipulation via phase, polarization, and coding apertures.
  • A need exists for metasurfaces with expanded channel capabilities, including dual-frequency operation and minimal crosstalk.

Purpose of the Study:

  • To introduce a multifunctional metasurface with integrated phase- and amplitude simultaneous coding meta-atoms at dual frequencies.
  • To demonstrate the capability of reshaping wavefronts of reflected electromagnetic waves by altering wave polarization.
  • To enable distinct functionalities like anomalous reflection, reflection imaging, and vortex beam generation.

Main Methods:

  • Design and theoretical analysis of a multifunctional metasurface.
  • Integration of simultaneous phase and amplitude coding meta-atoms at dual frequencies.
  • Full-wave simulation to validate device functionalities.

Main Results:

  • The designed metasurface successfully manipulates both x and y linearly polarized waves at dual frequencies.
  • Phase and amplitude coding enables control over reflected wave properties.
  • Demonstration of anomalous reflection, reflection imaging, and vortex wave beam generation.

Conclusions:

  • The developed multifunctional metasurface integrates dual-frequency, simultaneous phase and amplitude coding.
  • This technology enables diverse wavefront manipulations and functionalities for advanced communication systems.
  • The findings pave the way for next-generation integrated communication systems with enhanced capabilities.