'Fusilli' radio waves open up wireless world: study
AFP/The Local · 3 Mar 2012, 06:35
Published: 03 Mar 2012 06:35 GMT+01:00
The new way to make radio signals more potent without boosting bandwidth is described in the Institute of Physics and German Physical Society's New Journal of Physics edition of March 2nd.
"In a three-dimensional perspective, this phase twist looks like a fusillli-pasta-shaped beam," lead study author Fabrizio Tamburini was quoted as telling the science website PhysOrg.
"Each of these twisted beams can be independently generated, propagated and detected even in the very same frequency band, behaving as independent communication channels."
That means they do not move linearly like all current forms of radio communications do, and they do not need more bandwidth to increase their transmission capacity.
"Now, the wide use of wireless communication has unavoidably led to the saturation of all available frequency bands, even after the adoption of artificial techniques that increase band capacity," said the study.
"This might represent a concrete proposal for a possible solution to the band saturation problem."
Tamburini told Nature magazine that the technique can boost radio power by up to nine times its current strength, and that the technology may be ready for the market in the next two to five years.