A multielement array antenna with additional constraints on the radiation pattern for operation in wireless communications systems

An algorithm for neutralization of the multipath-propagation effect with substantial angular spread is proposed. This algorithm is more stable than similar classical algorithms. Additional stability is attained owing to the use of artificial constraints that allow formation of wide nulls in the direction of interferences and wide maxima in the direction of the desired signal. The null width can be changed via selection of the order of the imposed constraints. The complexity of the hardware implementation of such a system can be decreased because requirements for the accuracy of estimated values of angular coordinates become less stringent.