The stealth technology has evolved over the years as a multi-disciplinary subject. The observability of aircraft to the radars depends on its radar cross-section. Thus reduction of EM signature pivots around minimizing the radar cross-section of the target. Several techniques are available to achieve this objective, including shaping and Radar Absorbing Materials (RAM). Use of radar absorbing materials is a promising technology to reduce the radar signature of the airborne targets. Considerable research has been undertaken for the development of effective RAMs. However, requirement of thin, broadband and cost-effective RAM continues to fuel the research in this area. In this study, we aim to synthesize ferrite based nanomaterials and carry out their EM characterisation to assess their suitability as radar absorbing materials. We further investigate advanced EM techniques of multilayering and frequency selective surfaces (FSS) for maximizing the reection loss.