We can tell that you are not here for a rational discussion but to troll this subject.
Nevertheless...Clue for you, troll.
In radar detection,
NOTHING is 'invisible'. It may surprise you to read me saying this, as I have relevant experience in the sensor business, but the US military
NEVER claimed anything to be 'invisible'. The correct phrasing is 'low radar observable'. The word 'invisible' is usually used by popular news.
The laws of physics were well known for this, all the way back to post WW II, that meters length freqs can detect large complex bodies like aircrafts. But those same laws of physics also said that if you want to accurately track an aircraft through 3D space, you need to use increasingly higher (shorter) freqs, and that is what 'stealth' is against, those centimeters and millimeters freqs. Lockheed knew of this before the F-117 came to be. The analogy is that you can see it, but whatever you throw at it, most likely it will miss.
Something like this...
Raptor debuts at Red Flag, dominates skies
Ignorant trolls like you have no interests in these details as put forth by people in this business. You take what is clearly a 'slow news day' article and thinks that
ANY one can fly with a radar antenna tens of meters across.
Let me know when you are ready to be educated. But I doubt you have that kind of intellectual honesty to admit you do not know any better.