| US 7,511,669 B2 | ||
| Antenna Device and Radio Communication Apparatus | ||
| Takeshi Maeda, Tokyo (Japan) | ||
| Assigned to Sony Corporation, (Japan) | ||
| Appl. No. 11/628,919 PCT Filed Apr. 15, 2005, PCT No. PCT/JP2005/007344 § 371(c)(1), (2), (4) Date Dec. 06, 2006, PCT Pub. No. WO2006/001110, PCT Pub. Date May 01, 2006. |
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| Claims priority of application No. 2004-187408 (JP), filed on Jun. 25, 2004; and application No. 2004-199883 (JP), filed on Jul. 06, 2004. | ||
| Prior Publication US 2008/0018548 A1, Jan. 24, 2008 | ||
| Int. Cl. H01Q 1/38 (2006.01) | ||
| U.S. Cl. 343—700MS [343/795] | 6 Claims |
| 1. An antenna device comprising:
a plane ground conductor plate;
a first radiating conductor for performing first radiation, disposed on the upper side of said plane ground conductor plate;
a second radiating conductor for performing second radiation, disposed on the upper side of said plane ground conductor plate
adjacently to and in parallel to said first radiating conductor so as to be symmetrical with said first radiating conductor
with reference to the center of said plane ground conductor plate; and
a first feeder port provided in said first radiating conductor, and a second feeder port provided in said second radiating
conductor and isolated from said first feeder port so that said first radiating conductor and said second radiating conductor
are operated independently from each other.
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