Wideband High Gain Printed Quasi-Yagi Diffraction Gratings-Based Antenna for 5G Applications

Abstract

A broadband high-gain printed Quasi-Yagi antenna with a perturbation-based planar dielectric lens is presented. The perturbation design parameters are based on the diffraction gratings theory for gain enhancement, radiation pattern improvement, and higher order modes suppression. The proposed antenna provides 94.5% aperture efficiency with a high gain of 15 dBi at 30 GHz, high radiation efficiency of 90%, and (24-40) GHz ultra-wide matching (S11