Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dou Yuanzhu0
Date of Patent
July 24, 2007
0Patent Application Number
113145780
Date Filed
December 21, 2005
0Patent Primary Examiner
Patent abstract
An antenna device includes a plate-shaped conductor and a radiating conductor that extends outward from an end portion of the conductor and has a length corresponding to a quarter wavelength of a first frequency. A strip-shaped slot portion formed by removing a part of the plate-shaped conductor extending inward from the end portion has a length corresponding to a quarter wavelength of a second frequency. A feed portion is perpendicular to the slot portion and crosses over the slot portion. The feed portion feeds the same signals to the slot portion and the radiating conductor.
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