| US 7,586,446 B2 | ||
| IC tag-bearing wiring board and method of fabricating the same | ||
| Isao Sakama, Hiratsuka (Japan); and Minoru Ashizawa, Tokyo (Japan) | ||
| Assigned to Hitachi, Ltd., (Japan) | ||
| Filed on Feb. 18, 2005, as Appl. No. 11/61,149. | ||
| Claims priority of application No. 2004-193719 (JP), filed on Jun. 30, 2004. | ||
| Prior Publication US 2006/0001138 A1, Jan. 05, 2006 | ||
| Int. Cl. H01Q 1/24 (2006.01) | ||
| U.S. Cl. 343—702 [343/700 MS] | 6 Claims |
| 1. An IC tag-bearing printed circuit wiring board comprising:
a radio IC (integrated circuit) tag and an antenna coupled to the IC tag, the IC tag having stored thereon information to
be transmitted, the antenna serving to radiate radio waves representative of the stored information to be transmitted, the
antenna being disposed on the surface of an edge of the printed circuit wiring board, the edge connecting a first major surface
of the printed circuit wiring board and a second major surface of the printed circuit wiring board;
wherein the antenna is a dipole antenna having a length equal to about one half the nominal wavelength of the radio waves
to be radiated;
wherein the first major surface is a printed circuit surface; and
an auxiliary antenna disposed on the first major surface or the second major surface, the auxiliary antenna having a long
side oriented substantially parallel to the length of the dipole antenna, wherein the long side of the auxiliary antenna is
longer than the length of the dipole antenna.
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