| 摘要 |
<p>There are demands for a high performance in-metal tag which can be embedded in a metal body and a metal surface. To meet such demands, a magnetic path is formed and a strong magnetic field perpendicular (vertical) to the metal surface is obtained, by using a U-shaped magnetic body, even when the magnetic body is embedded in a recess of the metal. Furthermore, by means of a system wherein a plurality of U-shaped magnetic bodies are combined, a strong perpendicular (vertical) magnetic field is obtained at a center part, even by using a metal surface current.</p> |
