Explanation

Also called gyromagnetic ferrite. The invention relates to a ferrite materials which can be used in the microwave wave band (including from meter wave to millimeter wave). There are mainly three types: spinel type, garnet type and magnetite lead type? The spinel type includes magnesium (Mg Mn, Mg Mn A1), nickel (Ni Zn, Ni Al) and lithium (Li Al, Li Ti) ferrite. The garnet type includes yttrium iron garnet YIG, yttrium aluminum garnet YA11G, yttrium gadolinium garnet YGdIG and calcium vanadium garnet ferrite. magnetite type also includes Sr-F ^ Al and Ba Ni Co iron 766wei ferrite. Magnetic lead stone materials has high anisotropy? It is generally suitable for millimeter wave devices. The performance requirements of microwave ferrite are: low resonance linewidth; In low frequency band, saturation magnetization and magnetocrystalline anisotropy constant K are required to be low, and in high frequency band, saturation magnetization and internal field are required to be high; Low loss and high stability.

Classification