Innovative pyramidal microwave absorber: eco-friendly utilization of biomass and silicon carbide for enhanced emi reduction

This study presents an innovative approach to developing pyramidal microwave absorbers, addressing environmental concerns associated with conventional polymer materials. The research focuses on integrating silicon carbide, a ceramic material, into the absorber's composition to enhance performance and align with sustainable practices. The absorber is constructed using a blend of cement, water, carbon, aluminum powder, and silicon carbide, showcasing attributes such as heightened fire resistance, super-thermal properties, workability, and environmental friendliness. A comprehensive analysis of the absorber's reflectivity performance is conducted through the NRL free space method. The empirical data culminates in a graph illustrating reflectivity versus frequency, revealing a significant enhancement in absorber performance with the incorporation of 10% silicon carbide, compared to the absence of this compound especially at C-band and X-band. The study also advocates for eco-conscious practices, emphasizing the use of locally sourced biomass materials, particularly in Malaysia's biomass sector. In conclusion, the carbon-ceramic pyramidal microwave absorber emerges as a promising solution for commercial applications, offering efficiency, sustainability, and environmental compatibility in communication technology and electromagnetic interference reduction in anechoic chambers.