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:
Sep. 25, 2001
Filed:
Jun. 21, 1999
Stefan Jonsson, Stocksund, SE;
Dan Karlsson, Solna, SE;
Allgon AB, Akersberga, SE;
Abstract
A dual band antenna with dual antenna elements, each including a first and a second antenna element (,), for transmitting and/or receiving radio frequency radiation in a first, relatively low frequency band and a second, relatively high frequency band, respectively, and an electrically conductive, substantially planar reflector device (,). Each first antenna element (,) is located close to an associated one (,) of the second antenna elements on a front side of the reflector device so as to define first and second radiation beams. The reflector device, on each lateral side thereof, is provided with an edge portion formed as a groove (,), which is open towards the front side of the reflector device and which is dimensioned so as to widen the azimuth beam width of the second beam to an angular value being close to that of the first beam, whereby both beams will have substantially the same azimuth width.