| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic loss material that is effective for taking measures against unnecessary radiation of an active element, an electronic circuit, etc. operating at a high speed. SOLUTION: The frequency dispersion of the imaginary part magnetic permeabilityμ" of a magnetic loss material has two dispersions D1 and D2 with different dispersed frequency regions. Moreover, the respective maximum valueμ"<SB>max</SB>(D1) andμ"<SB>max</SB>(D2) of the dispersion D2 on the low-frequency side and the dispersion D1 on the high-frequency side have a relationship ofμ"<SB>max</SB>(D2)≥μ"<SB>max</SB>(D1). D2 may be the dispersion due to magnetic resonance, and D1 may be the dispersion due to eddy current or the dispersion due to magnetic resonance. This magnetic loss material is manufactured by using soft magnetic powder that is obtained by performing triturating treatment to amorphous magnetic powder. COPYRIGHT: (C)2004,JPO
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