%0 Journal Article %T Opal: An open source ray-tracing propagation simulator for electromagnetic characterization %A Egea-Lopez, Esteban %A Molina-Garcia-Pardo, Jose Maria %A Lienard, Martine %A Degauque, Pierre %J PLoS ONE %V 16 %N 11 %D 2021-11-17 %I Public Library of Science %~ DeepDyve