%0 Journal Article %J Frontiers in Space Technologies %D 2021 %T A Hybrid Beamforming Design for Massive MIMO LEO Satellite Communications %A Joan Palacios %A Nuria González-Prelcic %A Carlos Mosquera %A Takayuki Shimizu %A Chang-Heng Wang %B Frontiers in Space Technologies %V 2 %G eng %U https://www.frontiersin.org/articles/10.3389/frspt.2021.696464/full %R 10.3389/frspt.2021.696464