Design and Performance of MXene‐Based Composite Metamaterial Microwave Absorbers Inspired by Antheraea pernyi Microstructures

ABSTRACT The rapid development of electromagnetic stealth and protection technologies has created a strong demand for microwave absorbing materials that are lightweight, flexible, and capable of broadband high‐efficiency absorption. However, conventional microwave absorbers generally suffer from excessive weight and thickness, limited absorption bandwidth, and poor mechanical flexibility. Inspired by the nanoscale protuberances on the compound eyes and the hierarchical scale structures of Antheraea pernyi, a biomimetic multiscale textile metamaterial structure was designed. By integrating 2D MXene nanomaterials, a lightweight, flexible, and broadband metamaterial absorber (MA) was constructed. The MA significantly enhances electromagnetic energy dissipation through the synergistic interaction of multi‐interface coupling and electromagnetic resonance. Both electromagnetic parameter measurements and full‐wave simulations confirm its highly efficient resonant coupling and energy loss mechanisms. Owing to this bio‐inspired design, the fabricated MA achieves efficient absorption with reflection loss (RL) below −10 dB across the X‐band at a thickness of only 1 mm. This research provides a promising strategy for the development of lightweight and flexible bio‐inspired electromagnetic stealth materials.