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:
Apr. 22, 2003
Filed:
Sep. 14, 2001
Jani Ollikainen, Hki, FI;
Antero Lehtola, Turku, FI;
Nokia Corporation, Espoo, FI;
Abstract
A radio antenna including a first shorted patch having a first resonance frequency (GSM1800), a second shorted patch having a second resonance frequency (E-GSM) connected to the first shorted patch for sharing a feed point, and a third shorted patch having a third resonance frequency (GSM1900) located adjacent to the second shorted patch. The second shorted patch has an extended portion surrounding at least two sides of the first shorted patch, leaving a gap therebetween. The third shorted patch serves as a parasitic patch to increase the bandwidth of the second shorted patch. Part of the extended portion of the second shorted patch is extended beyond the top edge of the ground plane to which the patches are grounded.