Developed metamaterial shows over 90% absorption efficiency in stealth applications, indicating strong dual-band capabilities.
In this work, a multilayer metamaterial with integrated radar and infrared stealth capabilities was developed. The dielectric layer was constructed using a silicon carbide nanowire (SiCnws) composite, providing both strong electromagnetic wave absorption and excellent thermal resistance. Thermogravimetric analysis revealed minimal mass loss below 750 °C, indicating the material's stability in high-temperature environments. Additionally, the metamaterial exhibited a reflection loss (RL) lower than −10 dB throughout the 2.42–30 GHz range, corresponding to an absorption efficiency above 90%. The synergy between the frequency selective surface (FSS) resonance and the SiCnws layer’s thermal insulation and infrared shielding properties enabled effective dual-band stealth performance. These results suggest that the proposed metamaterial is highly suitable for advanced defense applications, such as stealth coatings on jet engine exhaust systems in military aircraft.
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Wang et al. (2025) studied this question.
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