Lens antenna with a beam focused in azimuth and a sectorial beam in elevation in W band

As part of the development of a millimeter radar system for safety-related applications, a lens antenna operating at 94GHz was designed, simulated and measured. In order to satisfy the application, its radiation pattern had to be focused in azimuth plane with constraints on side-lobe level and sectorial in elevation plane while being simple to fabricate and robust. A horn antenna with a radiation pattern limiting the level of the side lobes was also developed.