Apertif, Phased Array Feeds for the Westerbork Synthesis Radio Telescope

W. A. van Cappellen, T. A. Oosterloo, M. A. W. Verheijen +87

We describe the APERture Tile In Focus (Apertif) system, a phased array feed (PAF) upgrade of the Westerbork Synthesis Radio Telescope which has transformed this telescope into a h…