  The modular design of planar phased arrays arranged on orthogonal
polygon-shaped apertures is addressed and a new method is proposed to
synthesize domino-tiled arrays fitting multiple, generally conflicting,
requirements. Starting from an analytic procedure to check the
domino-tileability of the aperture, two multi-objective optimization techniques
are derived to efficiently and effectively deal with small and medium/large
arrays depending on the values of the bounds for the cardinality of the
solution space of the admissible clustered solutions. A set of representative
numerical examples is reported to assess the effectiveness of the proposed
synthesis approach also through full-wave simulations when considering
non-ideal models for the radiating elements of the array.
