Amorphous/silicone composites and their applications in microwave attenuation

Abstract

Amorphous membrane, consisting of amorphous flakes and ferrite nanoparticles, has been prepared using the infiltration method. The composites with the membrane fillers show greatly increased complex permeability due to the in-plane arrangement of fillers and relatively small complex permittivity, as compared to general amorphous-filler composites. Therefore, the impedance matching between the composites and free space is improved and the attenuation effect is enhanced. The composites has better attenuation properties with low reflectivity and broad bandwidth, as compared to other amorphous composites.