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Forked-Crossing Metasurface for Multi-Band Polarization Conversion with Distinct Bandwidths.

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  • 1China Airborne Missile Academy, Luoyang 471009, China.

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Summary
This summary is machine-generated.

This study introduces a novel metasurface polarization converter. It achieves over 90% polarization conversion ratio across five frequency bands, suitable for advanced radar and communication systems.

Keywords:
distinct bandwidthsmetasurface polarization convertermulti-band

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Area of Science:

  • Electromagnetics and Metamaterials
  • Applied Physics

Background:

  • Metasurfaces offer unique electromagnetic properties.
  • Efficient polarization conversion is crucial for advanced wireless systems.

Purpose of the Study:

  • To design and demonstrate a reflective, multi-band metasurface polarization converter.
  • To achieve high polarization conversion ratio (PCR) across multiple frequency bands.

Main Methods:

  • Utilized a forked-crossing patch array design for the metasurface.
  • Conducted simulations and experimental verifications.
  • Analyzed quality-factor (Q-factor) to characterize frequency responses.

Main Results:

  • Achieved PCR >90% in five bands: 4.71-5.44 GHz, 7.26-9.55 GHz, 11.62-12.6 GHz, 13.33-13.46 GHz, and 15.61-15.62 GHz.
  • Demonstrated hybrid Q-factor behavior, combining wideband (low Q) and narrowband (high Q) responses.
  • Observed distinct resonances for high conversion efficiency.

Conclusions:

  • The proposed metasurface exhibits versatile performance, suitable for complex electromagnetic applications.
  • The design integrates wideband and selective narrowband polarization conversion capabilities.
  • Ideal for multifunctional radar, communication, and sensing systems requiring spectral control.