Abstract: A phased array antenna which is adapted to provide electronic scanning over a limited scan range with a minimum number of control devices and yet maintain fairly low sidelobes is disclosed wherein the respective radiating elements are grouped into steerable subarrays. Phase steering of the subarrays is performed in discrete steps by means of phase shifters with one or two bits interspersed within the feed network. The phase state of these subarray phase shifters is selected to improve the antenna gain and suppress the grating lobes. Overlapping of the radiating elements of the subarrays is also employed to further suppress grating lobes throughout the limited scan range.