The question above, I always wondered how that tech actually works, in a layman words of course. How does the signal absorbing paint work?
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To understand how radar stealth works you first need to understand how radar normally works.
The usual most simple way you use radar is by having a rotating antenna send out radar pulses and listen for “echos” of these pulses coming back after being reflected of an object.
You shine a flashlight into the void to see if there is something to see.
This usually work very well.
Almost all objects will have part of their surface angled in such a way to send a part of the radar beam straight back to its source. If you have a round object you can’t really avoid that.
Stealth planes and ships and so on, don’t do round. They tend to look a bit like low polygon objects from 90s game consoles. Made up out of flat surfaces joined together at a sharp angle.
This sort of geometry limits the directions a radar signal can be reflected to quite a lot.
If you know geometry you can build things so that they limit the chances of a return signal. or you can build small object made up out of all right angles like a cats eye that guarantee a radar return.
For stealth you want to limit the chance of returns signals a lot.
There are other factors that go into it like choosing the material and the paint for the craft to make it more stealthy, but the geometry is the main thing.
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