The objective is the development of photonic antenna arrays whose level of performance will go beyond the current state of the art. Two complementary concepts will be explored: photomixing antennas with photonic beam formers and higher gain values obtained by combining these photomixing antennas with advanced focusing structures (e.g. lenses or transmitting gratings). The final goal will be to propose flat antenna architectures with high gain and controllable beam for high-speed communications (backhaul/fronthaul radio links).