Yeah, but if you replace that with a distributed drone system, each TR module on something modern like a Wedgetail is waaaaay lower power. Just need data uplink.

You could essentially do the job with a collection of fighter jet radars on small drones. The power draw on an APG-81 from an F-35 would be well within the capacity of a small turbine engine.

Also, satellite AWACS from a low orbit constellation can do a lot. Expect to see these kinds of payloads launching in the near future.