Its touched on briefly in the article but this is what phased array antennas are good for. With a sufficient number of elements, you can modulate the shape and

Its touched on briefly in the article but this is what phased array antennas are good for. With a sufficient number of elements, you can modulate the shape and direction of the beam electronically. Its not magic, so you're still operating within some envelope of transmit power and receive sensitivity, and the antenna's effectiveness is going vary across the spectrum, but you do get a few new knobs to twist.