A dual-polarized printed circuit board, PCB, array antenna comprising: a plurality of PCBs, each PCB extending along a first axis to define a PCB width (Wst), a second axis orthogonal to the first axis to define a PCB height (Hst), and a third axis orthogonal to the first axis and the second axis to define a PCB length (Lst), each PCB having a PCB mounting surface that extends along the second axis from a first PCB end to an opposing second PCB end and along the third axis from a third PCB end to a fourth PCB end, a radiating antenna array including a plurality of radiator substrates, each radiator substrate having a patch mounting surface that extends along the first axis from a first radiator substrate end to an opposing second radiator substrate end and the third axis from a third radiator substrate end to an opposing fourth radiator substrate end; and a plurality of orthogonal interfaces configured to arrange the patch mounting surface of a given radiator substrate among the plurality of radiator substrates in an orthogonal position with respect to the PCB mounting surface of a given PCB among the plurality of PCBs wherein the radiating antenna array includes a plurality of radiating antenna elements disposed on the patch mounting surface, wherein each radiator substrate is disposed on the first PCB end of a respective PCB, wherein a given orthogonal interface among the plurality of orthogonal interfaces arranges the patch mounting surface of a given radiator substrate in an orthogonal position with respect to the PCB mounting surface of a given PCB, and wherein the given orthogonal interface comprises: a plurality of electrically conductive traces formed on the given PCB mounting surface; and characterized in that the given orthogonal interface further comprises a plurality of electrically conductive pins extending through the patch mounting surface and contacting the electrically conductive traces (111a-111c). a plurality of PCBs, each PCB extending along a first axis to define a PCB width (Wst), a second axis orthogonal to the first axis to define a PCB height (Hst), and a third axis orthogonal to the first axis and the second axis to define a PCB length (Lst), each PCB having a PCB mounting surface that extends along the second axis from a first PCB end to an opposing second PCB end and along the third axis from a third PCB end to a fourth PCB end, a radiating antenna array including a plurality of radiator substrates, each radiator substrate having a patch mounting surface that extends along the first axis from a first radiator substrate end to an opposing second radiator substrate end and the third axis from a third radiator substrate end to an opposing fourth radiator substrate end; and a plurality of orthogonal interfaces configured to arrange the patch mounting surface of a given radiator substrate among the plurality of radiator substrates in an orthogonal position with respect to the PCB mounting surface of a given PCB among the plurality of PCBs wherein the radiating antenna array includes a plurality of radiating antenna elements disposed on the patch mounting surface, wherein each radiator substrate is disposed on the first PCB end of a respective PCB, wherein a given orthogonal interface among the plurality of orthogonal interfaces arranges the patch mounting surface of a given radiator substrate in an orthogonal position with respect to the PCB mounting surface of a given PCB, a plurality of electrically conductive traces formed on the given PCB mounting surface; and characterized in that the given orthogonal interface further comprises a plurality of electrically conductive pins extending through the patch mounting surface and contacting the electrically conductive traces (111a-111c).