Multiscale Design of Dielectric Composites for Enhanced Microwave Absorption Performance at Elevated Temperatures

Abstract Aerospace vehicles and electronic devices are often operated in elevated temperature environments, which has led to an increased demand for high‐temperature microwave absorbing materials (MAMs). The microwave absorption properties of MAMs are influenced not only by the intrinsic material characteristics but also by the micro‐, meso‐, and macro‐structural configurations of the composites. This paper reviews recent advancements in high‐temperature MAMs through a multiscale design approach. Due to the temperature sensitivity of permittivity, MAMs tend to exhibit microwave reflection behavior at elevated temperatures. Strategies aimed at regulating conductivity and polarization behavior can enhance…

• NN
  National Natural Science Foundation of China

  Awards: 22305066, 22475065