A communication unit (300, 400, 500) comprising: a plurality of antennas (302, 402, 502); a plurality of radio frequency, RF, circuits (304, 310, 404, 410) respectively coupled to the plurality of antennas (302, 402, 502); a sigma-delta modulator (316, 416, 616, 816) comprising a number of stages, each stage comprising a plurality of signal-feedforward coefficients (603, 604, 605), a filter, a summing junction and a feedback gain element, the sigma-delta modulator (316, 416, 616, 816) being coupled to the plurality of RF circuits (304, 310, 404, 410); and a controller (340, 440, 640, 840) operably coupled to the at least one sigma-delta modulator (316, 416, 616, 816); wherein the sigma-delta modulator (316, 416, 616, 816) comprises a plurality of inputs (315, 415, 602, 801, 802, 902), each input coupled to a respective one of the plurality of RF circuits and configured to receive a respective one of multiple multi-phase input signals, wherein each signal-feed forward coefficient in each stage is configured to be applied to a respective one of the multiple multi-phase input signals, and the controller (340, 440, 640, 840) is configured to adjust at least one of the plurality of signal-feedforward coefficients (603, 604, 605) to reduce a level of an interference signal and concurrently add wanted signals in phase and wherein the summing junction in each stage is configured to combine the multiple multi-phase input signals after application of the plurality of signal feedforward coefficients; and wherein the controller (340, 440, 640, 840) is further configured to identify beam steering parameters of wireless signals received by the plurality of antennas (302, 402, 502) and in response thereto adjust at least one of the plurality of signal-feedforward coefficients (603, 604, 605) of the sigma-delta modulator (316, 416, 616, 816) to effect a beam steered signal. a plurality of antennas (302, 402, 502); a plurality of radio frequency, RF, circuits (304, 310, 404, 410) respectively coupled to the plurality of antennas (302, 402, 502); a sigma-delta modulator (316, 416, 616, 816) comprising a number of stages, each stage comprising a plurality of signal-feedforward coefficients (603, 604, 605), a filter, a summing junction and a feedback gain element, the sigma-delta modulator (316, 416, 616, 816) being coupled to the plurality of RF circuits (304, 310, 404, 410); and a controller (340, 440, 640, 840) operably coupled to the at least one sigma-delta modulator (316, 416, 616, 816); wherein the sigma-delta modulator (316, 416, 616, 816) comprises a plurality of inputs (315, 415, 602, 801, 802, 902), each input coupled to a respective one of the plurality of RF circuits and configured to receive a respective one of multiple multi-phase input signals, wherein each signal-feed forward coefficient in each stage is configured to be applied to a respective one of the multiple multi-phase input signals, and the controller (340, 440, 640, 840) is configured to adjust at least one of the plurality of signal-feedforward coefficients (603, 604, 605) to reduce a level of an interference signal and concurrently add wanted signals in phase and wherein the summing junction in each stage is configured to combine the multiple multi-phase input signals after application of the plurality of signal feedforward coefficients; and wherein the controller (340, 440, 640, 840) is further configured to identify beam steering parameters of wireless signals received by the plurality of antennas (302, 402, 502) and in response thereto adjust at least one of the plurality of signal-feedforward coefficients (603, 604, 605) of the sigma-delta modulator (316, 416, 616, 816) to effect a beam steered signal.