Element sharing in interleaved antenna arrays

The effect of allowing shared elements in interleaved thinned arrays is investigated. The sidelobe level (SLL) as a function of the number of shared elements mirrors the SLL of thinned arrays as a function of filling factor because the number of shared elements determines the filling factor of the subarrays. When the number of shared elements is small, the result is two subarrays on opposite sides of the aperture with only their ends being interleaved.