Nov-20-15
The technology behind a new stealth material able to self-tune to absorb microwaves and avoid radar signals has now been made public.
The ultra-thin material, created by a team from Huazhong University of Science and Technology, is made up of two layers: FR4, the same material used to make printed circuit boards, and a layer of the copper-and-semiconductor AFSS 9 (active frequency selecting surface.) Both layers sit atop a honeycomb-shaped layer that elevates the material from the surface of the craft.
Designed to be applied to the metal surface of the aircraft as a coating, the prototype AFSS material was able to absorb radio frequencies from 0.7 up to 1.9GHz.
More Info about this Invention:
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DEFENSEONE.COM]
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ARSTECHNICA.COM]
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