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Multi-Band Metamaterial Absorber Using a Slotted Octagonal Unit Cell
- Issue Date
- Jan-2025
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- absorption; metamaterial absorber; metasurface absorber; polarization-insensitivity; unit cell
- Citation
- ISAP 2024 - International Symposium on Antennas and Propagation
- Indexed
- SCOPUS
- Journal Title
- ISAP 2024 - International Symposium on Antennas and Propagation
- ISSN
- 2995-9853
- Abstract
- This study introduces an innovative electromagnetic metamaterial absorber (MMA) distinguished by its low-profile, polarization insensitivity (PI), and capability to function across multiple frequency ranges.The MMA unit cell comprises a slotted octagonal metallic patch fabricated on an FR4 dielectric substrate, with a grounded metallic layer at the back, and notably lacks resistive lumped components.Experimental findings illustrate that the proposed MMA achieves absorption levels surpassing 75% for normal incidence over diverse frequency bands, ranging from 2.22 to 2.38 GHz, 6.86 to 7.24 GHz, 11.68 to 12.71 GHz, 14.1 to 14.8 GHz, and 15.47 to 16 GHz. © 2024 IEEE.
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