A millimeterwave array antenna using dielectric radiators with pre-beamforming characteristics

An array antenna differing from classical design rules is described. Dielectric primary radiators are used providing prebeamforming features by their inherent characteristic. A line of 1×5 radiators realizes E- and H-plane beamwidths of 8 resp. 40 deg. with an effective aperture equaling less than 50 percent of well-known solutions. An integrated power splitting network ensures equiphase excitation of the radiators.