An electronically beam-steerable full-duplex phased array antenna is described. The phased array antenna includes an array of a plurality of radiating elements. The array includes at least one column having a plurality of radiating elements, and the array is configured to generate a radiation field. The phased array antenna includes a metasurface over the array of radiating elements. The metasurface introduces a phase shift to the radiation field of the array, to cause a beam of the phased array antenna to be angularly offset from the radiation field of the array.
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