Dual-polarization antenna

Antenna with dual polarization, the antenna comprising:

• at least one first port connecting the antenna to a first active circuit for transmitting or emitting a first polarized signal;
• at least one second port connecting the antenna to a second active circuit or to the first active circuit for transmitting or emitting a second polarized signal,
• a plurality of dual-polarized antenna elements connected to the first and second ports, the antenna elements being arranged in cell units, each cell unit including:
• four of the antenna elements, and
• two 1-to-4 junctions,
• each said junction comprising four branches and a common stub, each of the antenna elements comprising a first connection port for transmitting the first polarized signal and a second connection port for transmitting the second polarized signal, a first of the two 1-to-4 junctions being connected to each of the first connection ports in the cell unit, and a second of the two 1-to-4 junctions being connected to each of the second connection ports of the unit cell,
• wherein two of the four antenna elements are in a first plane and two others of the four antenna elements are in a second plane parallel to the first plane, said planes being offset from each other in a direction perpendicular to said planes by a distance smaller than a width of an antenna element in the each cell unit,
• an array of dividers/combiners connecting the common stub of each said 1-to-4 junction of each cell unit associated with the first polarized signal to the first port and connecting the common stub of each said 1-to-4 junction associated with the second polarized signal to the second port, the four antenna elements of each cell unit being superposed, the cell units being juxtaposed.