Most of the devices and sensors connecting to the Internet of Things (IoT) rely on transmitting radio waves to communicate, which requires power, which means batteries if mains power isn't an option.
Engineers have designed the first battery-free cellphone that can send and receive calls using only a few microwatts of power, which it harvests from ambient radio signals or light. It's a major step ...
At CES, we saw Samsung show off a TV remote that powers itself with nearby wireless waves, eliminating the need to even have a battery. While our own A/V Editor Phil Nickinson is skeptical about the ...
Researchers report that lab tests of a new metasurface-based antenna that can harvest 100 microwatts of power, enough to power simple devices, from low power radio waves. This represents an important ...
A team of researchers from Stanford University and the University of California, Berkeley, has created prototype radio-on-a-chip communications devices that are powered by ambient radio waves.
Abstract: Traditional active radars transmit a powerful electromagnetic pulse and record the echo's delay time and power to measure target properties of interest, such as range, velocity, and ...
The new tech developed by scientists at Disney Research eliminates the need for wireless radios, making devices communicate through radio waves already present in the environment. Scientists over at ...
Seemingly every connected device has at least one wireless radio in it. However, that often requires some big compromises. Those radios often chew up a lot of power, which isn't always practical with ...
(Nanowerk News) Researchers have developed a new metasurface-based antenna that represents an important step toward making it practical to harvest energy from radio waves, such as the ones used in ...
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