CO2 Z- CO2 Z-TYPE FERRITE COMPOSITE MATERIAL FOR USE IN ULTRA-HIGH FREQUENCY ANTENNAS

摘要

There is provided a ferrite composition containing Ba, Co, Fe, and Ir and having a Z-type hexaferrite phase and a Y-type hexaferrite phase. The ferrite composition has the formula Ba ₃ Co _{(2 + x)} Ir _x Fe _(24-2x) O ₄₁ (x = 0.05-0.20). The composition has the same or substantially the same transmittance and dielectric constant values while retaining low magnetic and dielectric loss factors. The compositions are suitable for microwave applications, such as high frequency and microwave antennas.