System and method for fine-tuning electromagnetic beams. One embodiment includes an array of electromagnetic radiators and beam-narrowing configuration. The array of electromagnetic radiators together generates an electromagnetic beam toward a configurable direction. The beam-narrowing configuration narrows the electromagnetic beam and consequently fine-tune the configurable direction. Optionally, the array of electromagnetic radiators is a phased-array that achieves the configurable direction electronically. Additionally or alternatively, the array of electromagnetic radiators is a millimeter-wave array, and the electromagnetic beam is a millimeter-wave beam.