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<H1>Hot Microwaves from Cool Fractals</H1>
<P><FONT face=Tahoma><FONT size=1>(Press release)</FONT> </FONT></P>
<P><FONT face=Tahoma>A little kitchen science ended with a new approach to
microwave cooking for the Boston-based firm <STRONG>Fractal Antenna Systems,
Inc</STRONG>. <BR><BR>Using a microwave oven to investigate properties of
metamaterials, FRACTAL’s researchers found that a layer of doily-like conductive
cutouts could evenly distribute the microwaves and remove the hotspots that
plague microwave cooking. </FONT></P>
<P><FONT face=Tahoma>“Early microwave ovens worked quite well”, noted
co-inventor Nathan Cohen,” but when cheaper designs made these a kitchen
appliance it compromised on cooking evenly. This limits what you can cook and
how well you can cook it. The food industry has been seeking a solution for
years.” </FONT></P>
<P><FONT face=Tahoma>The innovation comes from the marriage of two exotic
science applications—fractals and metamaterials. Fractals are intricate shapes
built up by repeated applications of a simpler one, while metamaterials are
composites made from close-spaced resonant shapes. By making the resonators out
of fractals, the firm introduced a synergy that allowed a versatility of control
and performance not achievable by other means. The firm calls these
“metafractals™”. Added Cohen, ” Think of it as an electric blanket for food,
with nothing to plug in. The food can be placed on it or wrapped by it and get
smooth cooking all around if desired, or focus on certain portions.” </FONT></P>
<P><FONT face=Tahoma>Built on a thin plastic sheet or into a serving tray, the
metafractal™ solution “looks like a plastic wrap with a decorative pattern, but
each of the doily-like pieces is a fractal that acts as a wireless resonator
that picks up the microwaves from the microwave’s ‘klystron’ and distributes it.
The invention is thus passive, totally safe and is inexpensive to implement.
It’s a natural to include in the in-microwave packaging of a ready to cook
meals. </FONT></P>
<P><FONT face=Tahoma>An added “green” benefit of the metafractal ™ solution is
that the even-cooking cuts down the cooking time, saving energy. “A microwave is
a power-hungry device, so cutting back how long you cook saves money, time, and
carbon emissions”, commented Cohen. </FONT></P>
<P><FONT face=Tahoma>Based on patented and patent pending technology, the firm
continues development based on feedback from the food industry. “Innovation
means getting out of the laboratory, getting into the kitchen, and listening to
the end-user, who will soon be our partners in this.” The firm expects the
metafractal™ solution to be available in consumer products within the next two
years. </FONT></P>
<P><FONT face=Verdana>Fonte: </FONT><A href="http://www.fractenna.com/"
target=_blank><FONT
face=Tahoma>www.fractenna.com</FONT></A></P></DIV></BODY></HTML>