Patent ID: 8269687
Filing Date: 2012-09-18
Classification: H01Q

Abstract:
1. Antenna arrangement for receiving and/or transmitting electromagnetic signals in at least two spaced-apart frequency bands including a first frequency band having a first center frequency (f1) and a second frequency band having a second center frequency (f2), 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 adjacent dual band elements being operative in said first frequency band (f1) and in said second frequency band (f2), 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 (f2), the ratio of said second center frequency (f2) to said first center frequency (f1) being in the range 1.5 to 3, wherein 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 (f1), the distance between said second and said first and third symmetry axis, respectively, being less than or equal to 0.6 times the wavelength of said second center frequency (f2).