Numerically-synthesized broadside-radiating leaky-wave antenna

In this paper, a broadside-radiating Leaky-Wave Antenna (LWA) based on a numerically-optimized impedance surface is presented. The antenna is designed using a recently-developed numerical technique for the automated design of metasurfaces, that allows to retrieve the optimized impedance profile from far-field mask constraints. The LWA obtained with this method shows a non-conventional impedance pattern that enables broadside radiation, thus overcoming the open stopband problem. Full-wave simulations of the designed solution confirm the performance predicted by the numerical technique.