Abstract: Antenna system includes an axially symmetric ground plane; a circular disc patch radiator positioned parallel to the ground plane; and a circular ring patch radiator positioned parallel to the ground plane and shorted to the ground plane using a cylindrical conductor at its inner radius; both radiators have the common axis of rotational symmetry; each radiator is excited with its own vertical metal pin, and both radiators are located at same height above the ground plane; and an axially symmetric capacitive decoupling element connecting a center of the disc patch to a center of the ground plane. Each vertical metal pin goes through the ground plane using through holes, and each vertical metal pin has a impedance matching network connected to it, and wherein the impedance matching network is connected to its transmission line section. The disc patch and the ring patch are isolated from the ground plane with dielectric.