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. 18, 2012
Filed:
May. 22, 2007
Bjorn Lindmark, Stockholm, SE;
Jesper Uddin, Stockholm, SE;
Bjorn Lindmark, Stockholm, SE;
Jesper Uddin, Stockholm, SE;
Powerwave Technologies Sweden AB, Kista, SE;
Abstract
The present invention relates to an antenna arrangement comprising a first and third set of antenna elements, being arranged as a first and third column and aligned along a first and third symmetry axis, respectively, each column comprising elements being operative in a first frequency band (f) and elements being operative in a second frequency band (f). The antenna arrangement further comprises a second set of antenna elements, being arranged as a second intermediate column along a second symmetry axis, said second symmetry axis being parallel to said first and third symmetry axes, and being operative in said second frequency band (f), wherein the ratio of said second center frequency (f) to said first center frequency (f) is in the range 1.5 to 3. The distance between said first and third symmetry axes is less than or equal to 0.6 times the wavelength of said first center frequency (f), and the distance between said second and said first and third symmetry axis, respectively, is less than or equal to 0.6 times the wavelength of said second center frequency (f).