| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio wave absorber which has a high absorption function to an electromagnetic wave of high frequency and is made smaller in thickness. SOLUTION: This radio wave absorber is comprised of more than one magnetic layer which contains a magnetic material having a controlled micro- structure of 1 to 100 nm in particle size. A wave absorbing sheet 2, as a magnetic material, is comprised of one magnetic layer that a material containing ferromagnetic elements, Fe, Co, and Ni, or a material containing an alloy containing Mn is prepared in a powdery state and the powder is dispersed in a polymer material, etc. It has a radio wave absorber function to a comparatively near electromagnetic field. |
