Hexagonal ferrite and antenna and communication equipment using the same

[Problems] sintered density is high, to provide a smaller Y-type hexagonal ferrite and the antenna loss. [SOLUTION] A hexagonal ferrite the Y-type ferrite as a main phase, the hexagonal ferrite M1O (M1 is Ba, at least one of Sr), M2O (M2 is Co, Ni, Cu, Zn, at least one) and Furthermore, configuring an antenna, a communication device using the hexagonal ferrite. Select Diagram Figure 1