Raven ES-05 is not a mechanically scanned radar. Raven ES-05 is an Active Electronically Scanned Array. Raven ES-05 has been in production and in service with Brazil and Sweden. Brazil received first operational gripen last week. Thales, Leonardo, BAE and Saab Radars are GaN based radar. American APG-83 is GaN based. Please download datasheet from manufacturer websites. Don't BS.The US will only accept to transfert some of their tech with the nearest ally : Canada, UK, Australia and New Zealand. Not more.
Add the fact that you buy Russian S400 and it's over (you will not suffer from CATSAA retaliation because you are a big market, not as Turkey, but you will not have access to latest tech)
US may only propose cheap weapons thanks to large serial production, but don't expect any significant ToT. Or with old junks like F16 (oups, F21 !) but only to produce the frame. Never you will have access to the AESA radar tech or electronic suite.
if you except US AESA radars, Japan AESA ones, etc....
120° with mechanical antenna moving : YES
GaN ? Not yet. Probably in a second variant (as every AESA radar)
Lockheed Martin already supplied tech to TASL to manufacture airframe of C-130 and Apache. Whether F-21 win the contract or not all F-16V airframe will be manufactured in India near future.
There are some superficial reassembles between F-16 and F-21 but both are different aircraft.
https://exoatmospheric.wordpress.com/2019/08/01/lockheed-martin-f-21-meet-make-in-india-fighter-jet/