Synthesis of circular and elliptical sparse arrays

A simple deterministic synthesis method for the design of aperiodic planar arrays with elements arranged on circular or elliptical rings is presented. Differing from other techniques presented in the literature, both the number of elements per ring, as well as the rings´ spacing, are synthesised adopting only a deterministic procedure. This permits the best agreement, in terms of least mean square error, with respect to a circularly (or elliptically) symmetric reference pattern.