Phased array

Array of antennas creating a steerable beam

In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio waves that can be electronically steered to point in different directions without moving the antennas.‹The template Excessive citations inline is being considered for deletion.›  The general theory of an electromagnetic phased array also finds applications in ultrasonic and medical imaging application and in optics optical phased array.

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