Looks Like Moore's Law May Be Hitting AESA Radar Technology

Active electronically scanned array (AESA) radars look to be approaching some major reductions in cost as the technology matures(paid subscription required). They are looking at the cost to drop from $5 million/m² to $500K/m² so "cheap" is a relative term.

Additionally, the use of an AESA with a parabolic reflector setup can give a much larger effective aperture, and hence resolution. It's called AESA-fed reflectors (AFR), and it's less agile than pure AESA, but a lot cheaper.