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M-type barium hexaferrite (BaFe12O19) was prepared using sol-gel auto combustion method which represents substantial magnetic materials and utilized as microwave absorbers. In addition barium titanate powder was prepared using conventional ceramic method as ferroelectric material. XRD tests showed that the ferrite possess hexagonal structure and barium titanate has tetragonal structure. The constituents then mixed with different ratios and dissipated in the epoxy-resin as the sticky and fixed medium. Microwave absorbing characteristic studied within X-band region using VNA (Vector Network Analyzer). The complex permittivity and permeability were calculated using NicolsonRossWeir (NRW) method. Maximum reflection loss was -36.83dB at 9.125GHz observed for the samples A1:3 (ferrite: barium titanate) the ratio equal 1:3 due to good matching between the relative permeability and relative permittivity ,likewise the absorbing properties increases with the concentration of Barium hexaferrite in composite materials because it appeared absorption resonance frequency at 11.025 GHz.

Preparation of Ferrimagnetics-Ferroelectrics Composites and Studying Their Microwave Characteristics at X-Band Region