@ARTICLE{Bakır_Mehmet_Chen_2025,
 author={Bakır, Mehmet and Köksal, Ahmet S. and Oral, Mertcan and Karaaslan, Muharrem and Çolak, Berker and Hasar, Ugur C. and Franco, Arlet P. and Teksen, Fikret A.},
 volume={33},
 number={2},
 pages={e154199},
 journal={Opto-Electronics Review},
 howpublished={online},
 year={2025},
 publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology},
 abstract={This manuscript introduces a novel wideband metamaterial absorber targeting the 2 GHz to 20 GHz range. The design employs a chaos theory, specifically the Chen attractor system, to generate fractal-structured patterns that enhance electromagnetic absorption. These patterns exhibit multi-resonant behaviour, providing superior efficiency compared to conventional periodic designs. The absorber is further optimized with a Magtrex 555 substrate (0.51 mm thick), known for its frequency-dependent permittivity and permeability, which amplifies performance. This combination of chaotic structures and optimized substrate achieves over 90% absorption efficiency across a broad frequency range. Comprehensive simulations and parametric studies validate the absorber effectiveness, significantly improving bandwidth and absorption capacity. The design is well-suited for electromagnetic shielding, energy harvesting, and stealth technology applications. Future works will emphasize real-world performance testing to validate practical applications in wireless communication, sensing technologies, and defence. By combining chaotic dynamics with substrate optimization, this work contributes significantly to next-generation electromagnetic absorbers, offering enhanced broadband absorption for various applications.},
 title={Chen chaotic system-based wideband metamaterial absorber},
 type={Article},
 URL={http://czasopisma.pan.pl/Content/134387/OPELRE_2025_33_2_M_Bakir.pdf},
 doi={10.24425/opelre.2025.154199},
 keywords={Magtrex 555, pattern generation, Chen attractor, metamaterial absorber},
}