Deino posted a better version at keypublishing. Here is what I said about it there.
Interesting find!
Its hard to tell the depth, but that dish looks to be very close to the housing. Most PD radars I have seen have their dish much further away because of the mechanical steering arm.
The size of the dish is also unusually big relative to the nose. Its hard to picture that thing being able to turn much in the J10's tapered nose.
Based on that, I am about 90% sure that we are looking at an ESA radar, and my bet would be that its AESA.