Patent ID: 7522116

Claim:
An antenna for transmitting and/or receiving multiple beams, wherein: the antenna includes optics comprising a main antenna element having at least one reflector or lens and optionally a secondary antenna element comprising at least one reflector or lens, together with a set of primary sources, each primary source transmitting or receiving one of said beams via the optics of the antenna; the main antenna element has an aperture of nominal diameter D, such that: D= 70 Bλ/HPBW λ designating the center wavelength of the frequency band of the beams; HPBW standing for half-power beam width (expressed in degrees) of the beams coming from the main antenna element; and B being a dimensionless number lying in the range 1.5 to 4; and the optics present a profile modified by a profile correction giving it a distribution obeying a relationship suitable for enlarging the reflected beam relative to optics comprising a parabolic main reflector.