Analog Steering for extreme large antenna number case

When antenna number goes large, digital steering is costly. The practical method is to use analog one.

I have predicted it long ago.

in reference to:

"Unique (patents pending) analog beam steering electronics allow the Beam transceiver to simplify and eliminate costly baseband processing leading to an overall lower wireless solution cost. This analog beam steering approach is independent of any particular baseband standard (ex. WiGig, IEEE WPAN, etc.) allowing support for multiple existing or future standards."
- beamnetworks - Technology (view on Google Sidewiki)