Multibeam Phased Arrays Exploiting Frequency Dispersion for Massive MIMO Satellite Communications

This article presents a frequency reuse methodology as applied to multibeam geostationary antennas that is suitable for different traffic scenarios. The maximization of the throughput is achieved adopting a strategy based on fixed grids of beams, each allocated to a frequency band that minimizes the dispersion effects. Each individual grid is associated with a lattice of orthogonal beams. The beam grids are independently positioned to best fit different traffic scenarios. Simulation results show that this positioning methodology has a significant impact on the overall throughput of the communication system and offers a substantial improvement as compared to a conventional scheme based on 4-colour frequency reuse.