| 摘要 |
PURPOSE:To allow the title material to have both magnetic loss and dielectric loss in a very high frequency region by a method wherein the necessary quantity of soft magnetic metal, having the desired dimensions and configuration and high electric resistance, is mixed into high molecular material. CONSTITUTION:A magnetic alloy, having the electric resistivity of rho>80muOMEGAcm, desirably rho>100muOMEGAcm, is used. High permeability amorphous magnetic metal alloys are the magnetic metal alloy which is desirable to be used, especially, a good result is obtained by a Co-Fe-Si-B amorphous magnetic metal alloy. Pertaining to the configuration and dimension of the magnetic metal alloy used, the needle-like, fiber-like or flake-like form, having a large aspect ratio, gives desirable results. Accordingly, high permeability ferromagnetic alloy granule, having the aspect ratio of 5 or higher, should be used. Also, the minimum axial size of the magnetic alloy used should be 1 to 100mum. The more desirable size is 10 to 50mum. The percentage of the magnetic alloy to be mixed in an insulating material should be 3 to 70% in volume ratio. |
