A solution has been proposed to harvest energy from the 5G network to power Internet of Things (IoT) devices and wearables.
Wireless charging is becoming increasingly common for smart phones, devices such as toothbrushes and razors and even electric vehicles. So far, however, the practical range is limited, which in turn limits its uses. But that could be set to change with the new solution from researchers at Georgia Institute of Technology in Atlanta, GA, opening the prospect for wireless charging in the future to become as ubiquitous as Wi-fi is today.
The solution from Georgia Tech incorporates a special lens system known as a Rotman lens into an antenna, in order to enable energy to be harvested across a wide angle of coverage in the 5G 28GHz frequency band. The challenge to harvest enough power to supply low power devices at long ranges is that large aperture antennas are required. However, large antennas have a narrowing field of view, which limits their operation if they are widely dispersed from a 5G base station. The Rotman lens, which […]
Image: Georgia Tech Rotman lens