| 摘要 |
An object is to provide a ferrite composition suitable for an antenna element with a long communication distance in a high-frequency band (for example, 13.56 MHz), a ferrite plate formed of the ferrite composition, a magnetic member for an antenna element formed of the ferrite plate, and an antenna element provided with a member for an antenna element. A ferrite composition, wherein: main components contain, with Fe2O3 conversion, 45.0-49.5 mol % of iron oxide, with CuO conversion, 4.0-16.0 mol % of copper oxide, with ZnO conversion, 19.0-25.0 mol % of zinc oxide, a remaining portion is constituted by nickel oxide, an inevitable impurity is removed with respect to the main components, and as accessory components, with TiO2 conversion, 0.5-2 weight % of titanium oxide, with CuO conversion, 0.35-2 weight % of cobalt oxide are contained. |
| 主权项 |
1. A ferrite composition, wherein:
main components comprise: with Fe2O3 conversion, 45.0-49.5 mol % of iron oxide; with CuO conversion, 4-16.0 mol % of copper oxide; with ZnO conversion, 19.0-25.0 mol % of zinc oxide; the remaining portion being constituted by nickel oxide; wherein inevitable impurities are removed with respect to the main components, and as accessory components: with TiO2 conversion, 0.5-2 weight % of titanium oxide; and with CuO conversion, 0.35-2 weight % of cobalt oxide are contained. |
