Abstract: A polarization rotator including a plurality of polarizer layers that are stacked along a general direction of radiation propagation. Each polarizer layers implements a wired grid pattern associated with respective extinction axis for extinction of radiation components that are polarized therealong. The extinction axes of consecutive polarizer layers are orientated differently so that polarization of radiation interacting therewith is rotated. The relative orientations of the polarizer layers are selected such that a tiling of a plurality of substantially identical polarization rotation unit cells is defined within the polarization rotator, where the unit cells are arranged with predetermined spatial periods A and B along two lateral axes. The polarization rotator may be coupled to an array of elements (e.g. antennas) arranged parallel to the tiling of unit cells, with respective spatial periodicities A? and B? that are integer multiples of the predetermined spatial periods A and B of the unit cells.

Abstract: A polarization rotator including a plurality of polarizer layers that are stacked along a general direction of radiation propagation. Each polarizer layers implements a wired grid pattern associated with respective extinction axis for extinction of radiation components that are polarized therealong. The extinction axes of consecutive polarizer layers are orientated differently so that polarization of radiation interacting therewith is rotated. The relative orientations of the polarizer layers are selected such that a tiling of a plurality of substantially identical polarization rotation unit cells is defined within the polarization rotator, where the unit cells are arranged with predetermined spatial periods A and B along two lateral axes. The polarization rotator may be coupled to an array of elements (e.g. antennas) arranged parallel to the tiling of unit cells, with respective spatial periodicities A? and B? that are integer multiples of the predetermined spatial periods A and B of the unit cells.