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A wideband filtering metasurface antenna with high edge roll-off rates based on characteristic mode analysis

Author

Listed:
  • Yunlong Mao
  • Deshun Li
  • Yuxuan Wang
  • Yifan Shen
  • Atef Z. Elsherbeni

Abstract

A wideband filtering metasurface (MTS) antenna with high edge roll-off rate is proposed in this letter. The MTS is analyzed and optimized using characteristic mode analysis (CMA) to generate radiation nulls at higher frequencies, while a quarter-wavelength stub integrated into the feedline produces a lower-frequency null. A prototype antenna was fabricated and experimentally validated. Measurement results confirm that the antenna achieves a 33.8% impedance bandwidth, a peak gain of 7.92 dBi, and edge roll-off rates exceeding 81.6 dB/GHz, demonstrating strong potential for modern 5G communication systems.

Suggested Citation

  • Yunlong Mao & Deshun Li & Yuxuan Wang & Yifan Shen & Atef Z. Elsherbeni, 2026. "A wideband filtering metasurface antenna with high edge roll-off rates based on characteristic mode analysis," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 40(6), pages 819-830, April.
    • Handle: RePEc:taf:tewaxx:v:40:y:2026:i:6:p:819-830
    DOI: 10.1080/09205071.2025.2609162
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