The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2004
Filed:
Apr. 01, 2003
Ming-Hau Yeh, Hsinchu, TW;
D-Link Corporation, Hsinchu, TW;
Abstract
The present invention is to provide a planar double L-shaped antenna operable at two different frequency ranges comprising a patch line printed on a top of a dielectric substrate and having one end formed as a signal feed point; a ground metal plate printed on a bottom of the dielectric substrate; a first radiating element formed at the other end of the patch line and extended in a direction perpendicular to the patch line above and beyond the ground metal plate to shape as an inverted L shape; and a second radiating element extended beyond the ground metal plate to shape as an inverted L shape and spaced apart from the first radiating element, so that the first and the second radiating elements are capable of receiving signals having different frequencies.