A wideband filtering metasurface antenna with high edge roll-off rates based on characteristic mode analysis
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.
Fields of Study & Subjects
Antenna Design and Analysis
Advanced Antenna and Metasurface Technologies
Metamaterials and Metasurfaces Applications
Publication details
- Journal / source
- Journal of Electromagnetic Waves and Applications
- Publisher
- Informa UK Limited
- Volume
- 40
- Issue
- 6
- Pages
- 819–830
- Publication date
- 3 January 2026
- Language
- EN