Each of a plurality of modules comprises a respective one of a plurality of antenna elements, and each of a subset of the plurality of modules comprising a respective one of a plurality of transceivers, wherein the plurality of modules are interconnected via one or more communication links. The circuitry may be operable to receive a calibration signal via the plurality of antenna elements, determine, for each one of the antenna elements, a time and/or phase of arrival of the calibration signal, calculate, based on the time and/or phase of arrival of the calibration signal at each of the plurality of antenna elements, electrical distances between the plurality of antenna elements on the one or more communication links, and calculate beamforming coefficients for use with the plurality of antenna elements based on the electrical distances.