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Synthesis of NiCuZn ferrite composite materials, prepared by mixing the ferrite particles with rubber, have been studied.The ferrite were made by solid state reaction and followed by spray drying method.The composite materials were kneaded by test roller with the ferrite powder and polymer, and then pressed to sheet and core form.Complex permeability spectra in ferrite-polymer composites have been studied in the frequency range from 1MHz to 1GHz.The microwave absorption properties of ferrite-polymer composites have been studied in the frequency range to 20GHz.