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Chaotic system based ultra-wideband microwave absorber designed by resistive ink modeling.

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Názov: Chaotic system based ultra-wideband microwave absorber designed by resistive ink modeling.
Autori: Colak, Berker, Oral, Mertcan, Bakir, Mehmet, Teksen, Fikret A., Alkurt, Fatih O., Koksal, Ahmet S., Hasar, Uğur C., Wang, Lulu, Altıntaş, Olcay, Karaaslan, Muharrem
Zdroj: Journal of Computational Electronics; Dec2025, Vol. 24 Issue 6, p1-16, 16p
Abstrakt: This study presents a novel microwave absorber design based on the Aizawa chaotic system, with deep analysis through mathematical modeling, simulation, and experimental analysis. The chaotic dynamics are used to generate complex fractal patterns with broadband absorption potential, derived via numerical solutions and processed with the 2D Julia set algorithm. Advanced image processing techniques further refine these patterns with high precision. The optimized fractal pattern is then transferred into an electromagnetic simulation environment to assess its wideband absorption capabilities. The absorber is fabricated by printing a resistive ink pattern (0.04 mm thick) onto an RO3003 substrate (0.51 mm thick), chosen for its flexibility and balanced electromagnetic performance. An equivalent circuit model is also developed to evaluate resistive, inductive, and capacitive properties, it follows a parametric study on material optimization. Simulations demonstrate effective absorption across the 1.82–34 GHz range, and measurements in the 3–34 GHz range using horn antennas show strong harmony with the simulation results. Compared to similar designs, this absorber demonstrates superior broadband performance. [ABSTRACT FROM AUTHOR]
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Databáza: Complementary Index
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Abstrakt:This study presents a novel microwave absorber design based on the Aizawa chaotic system, with deep analysis through mathematical modeling, simulation, and experimental analysis. The chaotic dynamics are used to generate complex fractal patterns with broadband absorption potential, derived via numerical solutions and processed with the 2D Julia set algorithm. Advanced image processing techniques further refine these patterns with high precision. The optimized fractal pattern is then transferred into an electromagnetic simulation environment to assess its wideband absorption capabilities. The absorber is fabricated by printing a resistive ink pattern (0.04 mm thick) onto an RO3003 substrate (0.51 mm thick), chosen for its flexibility and balanced electromagnetic performance. An equivalent circuit model is also developed to evaluate resistive, inductive, and capacitive properties, it follows a parametric study on material optimization. Simulations demonstrate effective absorption across the 1.82–34 GHz range, and measurements in the 3–34 GHz range using horn antennas show strong harmony with the simulation results. Compared to similar designs, this absorber demonstrates superior broadband performance. [ABSTRACT FROM AUTHOR]
ISSN:15698025
DOI:10.1007/s10825-025-02442-y