Patent ID: 6275188
Filing Date: 2001-08-14
Classification: H01Q,H04B,H04K

Abstract:
A nulling antenna system comprising:a main phased array including a plurality of antenna elements, said main phased array combining signals received by the antenna elements into a plurality of pixel beams, said plurality of pixel beams defining at least one communications channel;a plurality of auxiliary phased arrays positioned around and spaced from the main array, each of the auxiliary phased arrays including a plurality of antenna elements, each of the auxiliary arrays combining signals received by the auxiliary antenna elements into an auxiliary beam; andat least one adaptive weighting system responsive to a plurality of pixel beams defining the at least one communications channel and the plurality of auxiliary beams from the auxiliary arrays, said adaptive weighting system determining if a jamming signal is being received by the main array and weighting the pixel beams so that the jamming signal is nulled from the at least one channel.