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antennasIEEE Spectrum
•Science
Science
79% Informative
A new shape-shifting antenna could dynamically adapt to different communications requirements allowing it to do the work of multiple fixed antennas.
The antenna features a double spiral made of “shape-memory alloy,” which changes shape when heated or cooled.
The shape of an antenna determines what kind of signals it can work with.
The new design is the brainchild of a team at the Johns Hopkins Applied Physics Laboratory .
APL approach avoids additional electronic components that suck up power and result in weaker signal.
But relying on heating and large-scale structural changes to reconfigure the antenna results in a relatively slower response time compared to metasurfaces.
Ultimately, Sherburne says the two approaches are probably suited to quite different applications.
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