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Saturday, February 02, 2013

Data Waves for Fast Device Communication

New to me in New Scientist:   " ... This type of electromagnetic wave stays at the interface between the surface of an object and the air, rather than travelling through open space. Radar systems have used them to see around the curvature of the Earth, but communicating in this way is a first.  Janice Turner and colleagues at Roke Manor Research in Romsey, UK, have created a demonstration system that uses the waves to send high-definition video over a short length of material. It has a bandwidth of up to 1.5 gigabits per second, making it almost three times faster than Wi-Fi. The signal does not travel through the material but rather over its surface for a few centimetres. ... "

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