Metasurface-based multifunctional composites with ultra-robust broadband microwave absorption up to 1000 °C.

ABSTRACT: The metamaterials offer methodology and infinite possibilities for ultra-broadband microwave absorption (MA). However, maintaining stable broadband MA under extreme high-temperature environments remains one of the most cutting-edge challenges. Herein, we report a RuO₂/glass resistive material for the fabrication of microwave-absorbing metasurfaces. Based on tunneling effect, an ultra-low temperature coefficient of resistance was achieved in RuO₂/glass, resulting in temperature-insensitivity of its electrical properties, thereby ensuring stability of MA properties of metasurfaces against temperature. Furthermore, using low-dielectric alumina aerogel composites and Al₂O_3f/Al₂O₃ ceramic composites as dielectric spacer layer, we

SUBMITTER: Lv X 

PROVIDER: S-EPMC12647858 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature