Double-layer waveguide-fed high gain antenna array in the 60 GHz band

In this report, a double-layer waveguide-fed antenna array is proposed to operate at the 60 GHz band. The simulated results show a maximum gain of 32.7 dBi, a 17% bandwidth centered at approximately 60 GHz and a maximum aperture efficiency of 70%. In addition, the antenna is simple in structure and easy in fabrication.