In an embodiment, an apparatus includes a first plurality of digital beamformers associated with a first channel; a second plurality of digital beamformers associated with a second channel different from the first channel; a channel combiner, electrically coupled to the first and second plurality of digital beamformers, and configured to generate a combined channel comprising an aggregation of the encoded first plurality of data beams and the encoded second plurality of data beams, wherein the combined channel has a bandwidth that is a function of a bandwidth of one or both of the first or second channel; and a radio frequency (RF) transmission section, electrically coupled to the channel combiner, and configured to generate an output signal to be provided to a transmitting antenna based on the combined channel, wherein the RF transmission section includes a digital-to-analog converter (DAC) and a mixer.