Multibeam Antenna Reflector Distortions Reconstruction via Processing Antenna Array Signals

This paper proposes a heuristic algorithm provides reconstruction of a deformed reflector of a satellite multiple beam hybrid reflector antenna via processing signals from a ground beacon. The algorithm is based on a comparison in a region around undeformed reflector of phase distributions of two fields: the field of antenna array, which elements are excited with accordance to conjugate amplitudes of the received signals, and the field of a plane wave propagating in the direction of the beacon. Simulations show that while the antenna array intercepts a bulk of power focusing by the reflector reconstruction accuracy keeps fine.