Skip to main content

Radient patents technology to wirelessly charge devices using repurposed RF waves

smartphone battery
Image used with permission by copyright holder
We’re surrounded by radiofrequency (RF) energy, which is the basis for telecommunications, from radio and television to cell phones. Our smartphones use energy to send signals to cell towers, but up to 90 percent never reaches its intended target. What if those RF waves could be repurposed and used to power our cell phones and other electronics? That’s exactly what Radient Micro-Tech is proposing.

The company has just received two patents for its technology that captures RF waves and converts them into electrical energy. The idea is to use the surface of your cell phone, or other mobile device, as an antenna that can absorb and reuse its own wasted radiated power. Radient claims this could boost battery life by up to 30 percent.

To make licensing even more attractive to manufacturers, Radient’s technology can also serve as a wireless charger. It could potentially enable the alluring prospect of real wireless charging on-the-go, without wires or mats. Wireless charging is significantly less efficient than wired charging, so the fact that Radient’s technology recycles wasted energy is appealing from a green perspective.

The idea of your phone automatically charging up while it’s in your pocket is the holy grail of wireless charging, but Radient is not without its competitors. TechNovator XE showed off a working prototype last year, Ossia is working in this space, and Energous also has an RF-based wireless-charging technology. However, Radient is doing things a little differently.

“Most of the options out there today transfer power from one location to another — from charger to device — a principle that Nikola Tesla demonstrated back in the 1890s. Radient is the first company to go beyond this outdated, 19th century model.” said Marc Chen, Radient co-founder and CTO.

The double whammy of reducing power consumption and extending battery life could give Radient an edge when it comes to persuading device manufacturers to license the tech.

“In addition, improperly implemented externally attached cell phone case solutions can degrade or block a cell phone’s communication signal, creating a situation where, in an emergency, calls will be dropped,” explained Chen. “Radient has developed the technology to specifically address these kinds of problems.”

It may be a while before we see this technology in a consumer device. Radient is targeting wireless device manufacturers, semiconductor suppliers, and wireless charger companies, but there’s no word on any partners just yet.

Editors' Recommendations

Simon Hill
Former Digital Trends Contributor
Simon Hill is an experienced technology journalist and editor who loves all things tech. He is currently the Associate Mobile…
We finally know when Apple will announce its 2024 iPads
Official artwork for Apple event in May 2024.

(more…)

Read more
One of the biggest Oura Ring competitors just did something huge
The Ultrahuman Ring Air and the Oura Ring, resting on a table.

Ultrahuman, the maker of the Ultrahuman Ring Air, is making its way to U.S. production grounds. The company is setting up a production facility in Indiana, which will mark the first time a smart ring from Ultrahuman will be assembled from scratch on U.S. soil.

“The UltraFactory will offer an end-to-end production capability and is based on the company’s first operational model of such a facility in India,” the company says.

Read more
Best Verizon new customer deals: Galaxy S24, iPhone and more
Verizon logo on a smartphone screen in a dark room and a finger touching it.

If you’re in the market for one of the best phones, or any new phone for that matter, you’re going to need a good carrier. Verizon has long been one of the most popular options, as it boasts one of the most reliable networks in the United States. It offers some of the best cell phone plans out there, and for new customers Verizon also offers some pretty impressive discounts on new phones. In many cases this means you can brand new, recently released phones entirely for free when signing up with Verizon. And that’s the case right now, as we’re currently seeing some of the best Verizon new customer deals we’ve seen. You can pretty easily land a new iPhone, Samsung Galaxy phone, and Google Pixel for free, and we’ve got all of the details on how to do so. If that sounds enticing, read onward and start shopping the best Verizon new customer deals available right now.
Free iPhone SE (3rd Gen)

The 2022 release of the Apple iPhone SE is yours for free when you sign up for a new 5G data plan on Verizon -- no trade-ins required. It's the best small smartphone in our list of the best smartphones with a 4.7-inch Liquid Retina display, but it doesn't sacrifice performance as it's powered by Apple's A15 Bionic chip that's also found in the iPhone 13 line and pre-installed with iOS 15. The latest iPhone SE is equipped with a single 12MP rear sensor and 7MP selfie camera, which are boosted by Apple's software to enable better photographs.

Read more