LOW LOSSES FERRITE MATERIAL FOR HIGH FREQUENCY OPERATION IN A WIDE TEMPERATURE RANGE

摘要

The invention relates to a ferrite material of the spinel type based on nickel and zinc, characterized in that it satisfies the following chemical formula: NixMgyZntCuwCoeZrzFe2-d04 where : 2(x + y + t + w + e) + 4×z + 3×(2 - d) = 8; 0 < d = 0.05; 0.005 = e = 0.05; 0.001 = z = 0.01; 0.005 = y = 0.1; and 0.02 = w = 0.20. The invention also relates to a process for manufacturing such a material and to magnetic components incorporating this material, particularly those designed for applications at high and very high frequencies of the order of 1 MHz to 100 MHz and having low magnetic losses for high power levels.