Patent ID: 6937206

Claim:
Dual-band dual-polarized antenna array operating at a lower frequency f 1 and at a higher frequency f 2 , the ratio f 2 /f 1 being smaller than 1.5, wherein the antenna elements are arranged as follows: (a) a first row of antenna elements aligned along a first vertical axis, said first row of antenna elements being dual-polarized antenna elements operating at said higher frequency f 2 , the spacing between said elements being smaller than the size of the central wavelength at said higher frequency f 2 (b) a second row of antenna elements aligned along a second vertical axis, said second row of antenna elements being dual-polarized antenna elements operating at said lower frequency f 1 , said second row of antenna elements being spaced the same distance as said first row of antenna elements in the adjacent row operating at frequency f 2 , said second vertical axis located substantially parallel to said first vertical axis at a distance between 0.1 and 1.2 times the longer operating wavelength, and wherein the positions of said first row of antenna elements operating at frequency f 2 are interleaved in the vertical direction with respect to the vertical positions of said second row of antenna elements operating at frequency f 1 so that the distance among elements is maximized.