Wide-Scan Focal Plane Arrays for mmWave Point-to-Multipoint Communications

A new antenna system concept is presented where a wide-scan focal plane array used to achieve point-to-multipoint communication. The of parabolic toroid reflector populated with several arrays, the positions which determine directions beams. This investigated for beams pointed towards 0° (broadside) and 28° in azimuth. Each allows scanning an additional ±1° azimuth elevation. compensation twist sway mast. Several configurations are compared terms directivity scan loss such at E-band. It found that 8-by-8 inter-element spacing $0.7 \lambda _{0}$ results optimal lower than 1dB when For beam direction 45.5dBi 44.4dBi, showing wide angle properties this system. An experimental built K-band measurements performed action. In notation="LaTeX">$0.5 . ±2° elevation below 1dB. 37.0dBi 35.4dBi directions, respectively. spillover losses aperture efficiencies also found, as well relative metric transmitted power effective isotropic radiated both E-band systems.