Flexible Meta-Skin Cloaks Objects from Radar

Mar-09-16 A new, flexible meta-skin able to suppress radar when stretched could find its way onto the next generation of stealth aircraft.

Developed by a team at Iowa State, the meta-skin features layers of silicon sheets that have been embedded with rows of split ring resonators filled with galinstan. The rings function as a sort of liquid wire, creating electric inductors, while the gaps between them create electric capacitors. Working together, the array acts as a resonator able to suppress certain frequencies of radar waves. As the skin is stretched, the liquid metal rings change size, in turn altering the frequencies that the material will suppress.

In test, the meta-skin was able to suppress around 75 percent of radar waves in the 8 to 10 gigahertz range, and objects wrapped in the skin are hidden from radar waves coming from all directions and observation angles.

More Info about this Invention:

[DISCOVERY.COM]
[NEWS.IASTATE.EDU]

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