What are Luneburg lenses and how do they work? Do they work on stealth planes like the F-22 and F-35, but not on older planes like the B-2 or SR-71? - Quora
彩云香江 on X: "Latest images show that the J-20A is equipped with indigenous WS-10C engine, and the new luneburg lens radar reflector is also retractable(Images 1-2), but it was powered by Russian
China's Radars Tracked the US Stealthy F-22 Raptor | Israel Defense
F-22 Raptor takes off with a luneberg lens attached to its belly : r/EngineeringPorn
How to Detect a Stealth Fighter | by War Is Boring | War Is Boring | Medium