| US 7,515,111 B2 | ||
| Antenna apparatus | ||
| Akihiro Tsujimura, Ome (Japan); Koichi Sato, Fuchu (Japan); Takashi Amano, Soka (Japan); and Hiroyuki Hotta, Ome (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 01, 2006, as Appl. No. 11/515,304. | ||
| Claims priority of application No. 2006-147282 (JP), filed on May 26, 2006. | ||
| Prior Publication US 2007/0273600 A1, Nov. 29, 2007 | ||
| Int. Cl. H01Q 1/00 (2006.01); H01Q 9/28 (2006.01) | ||
| U.S. Cl. 343—787 [343/795] | 28 Claims |
| 1. An antenna apparatus which is set on a printed circuit board comprising a metal surface to generate a ground potential,
and a signal line pattern to transmit a high-frequency signal, wherein said antenna apparatus comprises:
an antenna element to which the ground potential is received from the metal surface; and
a magnetic member arranged between the antenna element and the printed circuit board, wherein within said magnetic member
a plurality of magnetic nanoparticles with ferromagnetism are dispersed and arranged in an insulating matrix substrate.
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