MIT's 'RFocus' smart surface uses tiny antennas to amplify wireless signals by up to 10x TechSpot

The project, dubbed RFocus, is described as a “smart surface” consisting of more than 3,000 tiny antennas. Each software-controlled antenna on the two-dimensional surface can either let a wireless signal through or reflect it, depending on what is deemed as the best way to maximize signal strength.





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