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. 28, 2003
Filed:
Apr. 29, 2002
Govind R. Kadambi, Lincoln, NE (US);
Jon L. Sullivan, Lincoln, NE (US);
Centurion Wireless Technologies, Inc., Lincoln, NE (US);
Abstract
A Planar Inverted F-Antenna (PIFA) comprising: a radiating element placed above a dielectric carriage with four side walls; a ground plane positioned below the dielectric carriage; a short circuiting element at the front edge of the radiating element; a feed tab at the front edge of the radiating element; vertical planes formed along the right and left edges of the radiating element forming capacitive loading plates; a first reactive loading slot formed in the radiating element between the short circuiting element and the left edge thereof; the open end of the first reactive loading slot being at the front edge of the radiating element; a second reactive loading slot formed in the radiating element between the feed tab and the right edge thereof; the open end of the second reactive loading slot being at the back edge of the radiating element; conductive stubs at the front and back edges of the radiating element for tuning lower and upper resonant frequencies; a conductive strip having a vertical attachment inserted into the dielectric carriage through a slot in the back side wall of dielectric carriage; the conductive strip with its vertical attachment being positioned flush with the outer surface of the back side wall and is connected to the ground plane to serve as a parasitic element to the radiating element for an additional and exclusive resonance.