Professor of Electrical and Computer Engineering and of Computer Science and Engineering, University of Washington Joshua R. Smith receive

Device transmits radio waves with almost no power – without violating the laws of physics

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2023-01-26 04:00:06

Professor of Electrical and Computer Engineering and of Computer Science and Engineering, University of Washington

Joshua R. Smith receives funding from the National Science Foundation, the National Institutes of Health, the Department of Energy, the Department of Defense Medical Command, DARPA, Bosch, and Amazon. He is a co-founder of start up companies Jeeva Wireless, Wibotic, and Proprio.

Zerina Kapetanovic's Ph.D. work was funded by a Microsoft Research Dissertation Grant. She is currently a Postdoctoral Researcher at Microsoft.

A new ultra-low-power method of communication at first glance seems to violate the laws of physics. It is possible to wirelessly transmit information simply by opening and closing a switch that connects a resistor to an antenna. No need to send power to the antenna.

Our system, combined with techniques for harvesting energy from the environment, could lead to all manner of devices that transmit data, including tiny sensors and implanted medical devices, without needing batteries or other power sources. These include sensors for smart agriculture, electronics implanted in the body that never need battery changes, better contactless credit cards and maybe even new ways for satellites to communicate.