Coherently radiating periodic structures (CORPS): a step towards high resolution imaging systems?

The coherently radiating periodic structures (CORPS) use the existing mutual coupling between the elements of an array to spread horizontally and coherently (in-phase) the complex amplitudes of each active element of the array. Despite the elements of the array being not too directive, the corporative behavior of all of them, radiating coherently the same information, provides highly directive beams arising from each array element, being possible narrow distances between beams. This concept applied to imaging systems, based on periodic disposition of low-profile radiating elements, could offer high resolution images in the range of microwaves and millimeter waves.