A method for processing data from an antenna array including a plurality of elements (202, 204, 206, 208, 210, 212, 214, 216) distributed on opposite sides of a central point, said method comprising: determining an in-phase component of each of a first signal and a second signal, wherein the first signal is associated with a beam and a first element of the plurality of elements (202, 204, 206, 208, 210, 212, 214, 216), the first element located on a first side of the central point of the antenna array, and the second signal is associated with the beam and a second element of the plurality of elements (202, 204, 206, 208, 210, 212, 214, 216), the second element located on a second side of the central point of the antenna array substantially a same distance away from the central point as the first element; determining a quadrature component of each of the first signal and the second signal; determining an in-phase weighting coefficient for the first signal in-phase component and a quadrature weighting coefficient for the first signal quadrature component, wherein the weighting coefficients are such that, when the weighting coefficients are applied to the in-phase and quadrature signals, the weighting coefficients phase shift the first signal by a determined amount, wherein the determined amount is based on a path distance D between a center of the first element and a line perpendicular to the direction of plane wave travel for a beam incident on the antenna array, the line passing through the central point of the antenna array; summing the first signal in-phase component and the second signal in-phase component to create a summed in-phase signal; summing the first signal quadrature component and the second signal quadrature component to create a summed quadrature signal; and weighting the summed in-phase signal with the in-phase weighting coefficient and weighting the summed quadrature signal with the quadrature weighting coefficient. determining an in-phase component of each of a first signal and a second signal, wherein the first signal is associated with a beam and a first element of the plurality of elements (202, 204, 206, 208, 210, 212, 214, 216), the first element located on a first side of the central point of the antenna array, and the second signal is associated with the beam and a second element of the plurality of elements (202, 204, 206, 208, 210, 212, 214, 216), the second element located on a second side of the central point of the antenna array substantially a same distance away from the central point as the first element; determining a quadrature component of each of the first signal and the second signal; determining an in-phase weighting coefficient for the first signal in-phase component and a quadrature weighting coefficient for the first signal quadrature component, wherein the weighting coefficients are such that, when the weighting coefficients are applied to the in-phase and quadrature signals, the weighting coefficients phase shift the first signal by a determined amount, wherein the determined amount is based on a path distance D between a center of the first element and a line perpendicular to the direction of plane wave travel for a beam incident on the antenna array, the line passing through the central point of the antenna array; summing the first signal in-phase component and the second signal in-phase component to create a summed in-phase signal; summing the first signal quadrature component and the second signal quadrature component to create a summed quadrature signal; and weighting the summed in-phase signal with the in-phase weighting coefficient and weighting the summed quadrature signal with the quadrature weighting coefficient.