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First Practical Invisibility Cloak Demonstrated.

WALTHAM, Mass. -- Fractal Antenna Systems Inc. today announced successful demonstration of the world's first practical invisibility cloak, at microwave frequencies. The device clearly shows the ability to "see through to the other side" for large, 3-Dimensional objects, thus rendering them invisible over a wide frequency range.

Previous invisibility cloaks were laboratory prototypes that commonly cloaked paperclips, thimbles, plastic cylinders, or small objects, and held no hope as practical devices. Also most cloak claims place the object in shadow, or render them black, so they block the view to the other side. In contrast, the firm's new invisibility cloak, which leads the convention for true invisibility, is not powered and has no restriction of object placement. "It's just what Harry Potter would want," said inventor, Nathan Cohen.

The invisibility cloak is built of tiny fractal patterns placed closely together, using a technique first reduced to practice by the firm in 2008.

FRACTAL's new 3D invisibility cloak is patent-pending, and is expected to have many practical applications for "co-site" issues, for example. Also, the cloak clearly indicates the technology can be used for infrared and visible light wave lengths.

The new cloak was recently publicly demonstrated to visitors from Radio Club of America and will be shown at public seminars in coming months.

A video of the new cloak can be seen at Cohen adds, "We also have something very exciting planned in the next few weeks for those fans of invisibility."


Fractal Antenna Systems, Inc. ( supplies products for the world's most demanding wireless, and electromagnetic applications. Backed by over three dozen U.S., and international patents, plus dozens of patents pending, Fractal Antenna Systems is the recognized pioneer in fractal technology, with extensive research and field experience over 16 years in business. The company is a privately held and headquartered in Waltham, Massachusetts, USA.
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Publication:Business Wire
Geographic Code:1U1MA
Date:Jun 28, 2012
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