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. 02, 2002
Filed:
Oct. 29, 1999
Anne Isohätälä, Kello, FI;
Kimmo Antila, Kiviniemi, FI;
Sauli Kivelä, Kuusamo, FI;
Jyrki Mikkola, Oulu, FI;
Suvi Tarvas, Oulu, FI;
Filtronic Lk Oy, Kempele, FI;
Abstract
A planar antenna comprises a planar radiating element ( ) formed of a conductive area confined by a substantially continuous border line. The conductive area is split by a gap which divides the planar radiating element into a first branch and second branch such that both the first and the second branch have an outermost end. The gap has a head end on said substantially continuous border line and a tail end within the conductive area. At its head end ( ) the gap has a certain first direction and at another point ( ) a certain second direction which differs from the first direction by more than 90 degrees when the directions are defined along the gap from the head end towards the tail end. The outermost end of the second branch, confined by the gap, is located within the continuous border line, surrounded by the first branch.