| US 7,541,979 B2 | ||
| Small size thin type antenna, multilayered substrate, high frequency module, and radio terminal mounting them | ||
| Ken Takei, Hitachi (Japan); Tomoyuki Ogawa, Hitachi (Japan); and Morihiko Ikegaya, Hitachi (Japan) | ||
| Assigned to Hitachi Cable, Ltd., Tokyo (Japan) | ||
| Filed on Oct. 19, 2005, as Appl. No. 11/252,889. | ||
| Claims priority of application No. 2004-305873 (JP), filed on Oct. 20, 2004. | ||
| Prior Publication US 2006/0097932 A1, May 11, 2006 | ||
| Int. Cl. H01Q 1/38 (2006.01) | ||
| U.S. Cl. 343—700MS [343/702] | 20 Claims |
| 1. A small size thin type antenna, an electrical structure of which is expressed by a topology, comprising:
an open stub; and
a connecting line or short stub,
wherein a characteristic impedance of the open stub is lower than a characteristic impedance of at least one of the connecting
line and the short stub.
|