Researchers at the Georgia Institute of Technology (GT) have developed a small card-sized rectifier antenna that converts the electromagnetic energy of 5G signals into electricity.
Wireless communications emit a lot of energy into the air that can be used by them used. Attempts have been made in the past to harness the power of the phone’s Wi-Fi and radio waves, but the 5G network has opened up a whole new opportunity for humans.
“5G is designed to deliver ultra-fast, very low-latency communications,” say researchers at the Georgia Institute of Technology. This technology uses millimeter waves that contain unprecedented energy. “The designers of 5G have inadvertently built a power grid that can power electronic devices from farther distances than current technologies.”
Researchers point out that harnessing millimeter-wave energy has long been possible, but has not been practical, because a large rectifier antenna is needed to absorb energy from a distance, and the larger the antenna, the smaller its field of view. Therefore, the user must position the antenna exactly in the direction of the energy wave source.
To solve this problem, the researchers used a toothed piece called a Rotman lens, which appears in the center of the card. Rotman lens antennas are a beamforming tool and have a high ability to absorb millimeter waves. This component allows radars to track targets moving in different directions without rotating or moving.
Researchers say the use of a Rothmann lens in a rectifier antenna enables flexibility and 3D printing of the card, absorbing energy from all directions. They point out that the device can absorb about 6 microwatts of power from a 5G transmitter at a distance of about 180 meters, which will be enough to power small sensors.
Researchers say that with the advent of the 5G network, the device could replace tens of millions of wireless sensor batteries, especially in small towns, and help the environment.
The results of this research in the journal Scientific Reports It’s been published.