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This work presents a novel metamaterial absorber based on a square-enclosed multiple split-ring resonator design, demonstrating high absorption across the X, Ku, and K bands. The absorber achieves impressive absorption rates of 98.68%, 99.76%, 99.91%, 92.10%, 93.64%, 99.09%, 99.97%, 95.25%, 99.60%, 99.44%, 98.58%, and 98.84% at frequencies of 10.9415 GHz, 11.774 GHz, 11.996 GHz, 16.8985 GHz, 19.6365 GHz, 20.5615 GHz, 21.505 GHz, 23.429 GHz, 23.799 GHz, 24.132 GHz, 24.7555 GHz, and 26.389 GHz, respectively. The absorber exhibits metamaterial properties with a negative refractive index, while the permittivity and permeability display near-zero and negative characteristics, validating its performance as a single-negative metamaterial (MTM). Additionally, the absorber demonstrates polarization angle insensitivity, maintaining performance up to 180° incident angles, making it suitable for diverse practical applications. Its compact size (20 mm × 20 mm) enhances its integration into various systems, particularly for 5G networks, satellite communications, and sensing applications in the X, Ku, and K bands.

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Square-Enclosed Multiple Split-Ring Resonator Metamaterial Absorber Designed for X, Ku, and K Band Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Md. Ismail Hossen,
  • Saif Hannan,
  • Md Mujahid Hossain,
  • Norbahiah Misran,
  • Mohammad Tariqul Islam

摘要

This work presents a novel metamaterial absorber based on a square-enclosed multiple split-ring resonator design, demonstrating high absorption across the X, Ku, and K bands. The absorber achieves impressive absorption rates of 98.68%, 99.76%, 99.91%, 92.10%, 93.64%, 99.09%, 99.97%, 95.25%, 99.60%, 99.44%, 98.58%, and 98.84% at frequencies of 10.9415 GHz, 11.774 GHz, 11.996 GHz, 16.8985 GHz, 19.6365 GHz, 20.5615 GHz, 21.505 GHz, 23.429 GHz, 23.799 GHz, 24.132 GHz, 24.7555 GHz, and 26.389 GHz, respectively. The absorber exhibits metamaterial properties with a negative refractive index, while the permittivity and permeability display near-zero and negative characteristics, validating its performance as a single-negative metamaterial (MTM). Additionally, the absorber demonstrates polarization angle insensitivity, maintaining performance up to 180° incident angles, making it suitable for diverse practical applications. Its compact size (20 mm × 20 mm) enhances its integration into various systems, particularly for 5G networks, satellite communications, and sensing applications in the X, Ku, and K bands.