Comment Re:Do they still use geostationary satellites? (Score 1) 337
You're joking, right?
A "beam" in this case is formed by doing signal processing tricks and sending out this signal to a special antenna array (but what is essentially a single physical antenna system). Many such beams can be formed electronically and combined electronically and sent out to this single antenna array.
Each new "beam" doesn't require additional hardware as you seem to be thinking.