Contribution
Content
ASTRON operates the pan-European Low -Frequency Array (LOFAR), a unique instrument that will complement phase one of the Square Kilometre Array (SKA), planned for construction in the coming three to five years. After nearly a decade of scientific operations, LOFAR science output is still ramping up. However, to keep the telescope at the forefront of science, a staged upgrade programme LOFAR2.0 was set in motion. This programme includes upgrading LOFAR phased-array stations by increasing the number of connected antennas, and by jointly observing the low-band and high-band frequencies. This will greatly increase the sensitivity, especially at the lowest frequencies where ionospheric effects are most severe. Simultaneous observations with both bands will allow to calibrate out these effects at the low band by using the ionospheric calibration solutions at the high band. The presentation will describe the new station architecture, show the first laboratory tests, and will also highlight the new design methodology.