Reflector focal network and antenna for use in satellite to cover chosen geographical area of geostationary orbit, has sub-reflector misaligning and/or deforming beam from selected sources to produce spot near area

摘要

The antenna has a control unit (50) selecting some of elementary sources adapted to cover a chosen geographical area, from a set of elementary sources (40) that are constituted of radiant elements e.g. slits. A main reflector (20) and an electrically/mechanically reconfigurable sub-reflector (30) are arranged one with respect to another to reflect one or a set of signals issued from/intended to the sources. The sub-reflector misaligns and/or deforms the beam from the selected sources to produce a spot near the area, to reduce constraints related to misalignment at level of the sub-reflector.