Download or read book High Gain Broadband Mm-wave Antennas and Beamforming for Wireless Communication Systems written by Essa Mujammami and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Generating multi-beams along with having broadband and beam steering capability in the mm-waves band are of crucial importance for diverse applications such as remote piloted vehicles, satellites, collision-avoidance radars, and ultra-wideband communications systems. Besides, the propagation environment at millimeter wave (mm-wave) frequencies-suggested for the next generation of wireless networks (5G)-lends itself to a beamforming structure wherein antenna arrays are required in order to obtain the necessary link budget and to overcome the associated strong attenuation. Therefore, the design of high gain antennas (to focus the directive beam to a user) and beamforming networks (to reduce interference) are essential and are needed to address many challenges associated with 5G wireless communications. This work addresses the design and development of high-performance Quasi-Yagi antenna and Rotman lens-based beamforming networks. Accordingly, several issues are addressed in this thesis. A Quasi-Yagi antenna with a perturbed dielectric lens that is broadband and has high gain is designed, optimized, fabricated and tested at 30 GHz. The antenna provides 95% aperture efficiency with a measured gain of 15 dBi as well as a radiation efficiency of ~90% at 30 GHz and a broadband (24-40 GHz) for |S_11 |