There is also the KJ-200, which uses electronically steered active phased array radar technology, and the larger KJ-2000, that reportedly uses an active phased array radar

As the prime contractor, Raytheon will integrate new electronics, computer hardware and mission software to upgrade the existing two-faced, phased-array antenna facility at the remote site.

Using a shipboard-configured phased-array antenna, the MILES autonomously acquired and tracked moving ground and unmanned aerial vehicle targets.