Patent ID: 8711040

Claim:
A wireless access gateway for communication of wave signals at radio frequencies within a frequency band, the gateway being enclosed in a housing comprising a bottom wall defining a base plane and comprising: a main circuit board within the housing overlying said bottom wall and having an upper surface and a lower surface, opposite to each other, said lower surface facing the bottom wall and said upper surface being substantially parallel to the base plane, and an antenna system arranged in the housing and comprising: a first linearly polarized antenna for propagating a first wave signal along a first polarization axis, the first antenna comprising a first radiating element extending along a first longitudinal axis in a first plane substantially parallel to the base plane, the first radiating element being placed laterally and external to the main circuit board with the first plane at a distance of not more than λ/4 from the upper surface of the main circuit board in a direction perpendicular to the first plane; and a second linearly polarized antenna for propagating a second wave signal along a second polarization axis oriented perpendicularly to the first polarization axis, the second antenna being placed laterally and external to the main circuit board and comprising a second radiating element extending along a second longitudinal axis in a second plane oriented perpendicularly to the first plane, wherein the first and second antennas are connected through the main circuit board to a diversity receiving circuit, and the first and second antennas are positioned relative to each other at a distance of at least λ/2 in a direction perpendicular to the first and second longitudinal axes, where λ is the wavelength corresponding to a radio frequency within the frequency band.