Radio amateur & inventor secures patent on Invisibility Cloak detection

Congrats to Ukraine for capturing the latest Russian tank (T-90M). Below is a picture--from twitter apparently, and posted in Ukraine, of a T-90M with 'camo coating'.

In fact, the 'camo' is actually an example of "shag-stealth", where carbon fiber(in fabric) nap is used as resonant absorbers of radar. Or, if you are naive, you will visually confuse the tank for a gray, hairy BOULDER... where boulders don't exist

NOT.



"Oh, beHAVE!"

 

Origin of shag-stealth?

 

Looks like TAN was too sexy..and the russians went with shagadelic gray...

 

"Shagadelic gray." Love it!

 

What happens if the carbon fibers get wet or dirty?

 

Not much. The spectrum is highly ohmic with a broad absorption at the radar band(s). Wetness/detritus just shifts the resonance from one part of the absorption bump to another part of the absorption bump. Fairly low Q...

Stealth on tanks is stupid in a wooded setting. You have a radar map prior to tanks, and the tanks then show up as black blobs on radar. In the woods. Oooh! A target!!

Ukraine ain't New Hampshire... no grey or black boulders in the woods.

 

And a space shuttle.

 

The Microwave Journal did a recent audio interview you can find here. Also includes pictures, and references.

I called stealth metasurfaces the 'equivalent to bumpstocks for handguns'. Too easy to make and use and an invitation to conflict. The new patent makes stealth metasurfaces much easier to detect.

Fractal Secures Patent on Invisibility Cloak Detection | Microwave Journal