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 Radient is the first company to go beyond this outdated, 19th century model.”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…
Huawei’s gorgeous Pura 70 phones just got expanded availability
Huawei Pura 70 pink, green, white, and black colors.

Huawei Pura 70 Huawei

After being announced for China in mid-April, the Huawei Pura 70 series is now confirmed for the EU market. Those in the European market can expect to preorder the Pura 70, Pura 70 Pro, and the top-tier Pura 70 Ultra starting May 2 for 999 euros, 1,199 euros, and 1,499 euros, respectively. This pricing is in line with what we saw in China, with the Ultra coming in at 9,999 yuan ($1,400) and the base Pura 70 at 5,499 yuan ($760).

Read more
The Honor Magic 6 RSR is my new favorite Android phone of 2024
Someone holding the Honor Magic 6 RSR outside.

There's no doubt that 2024 has already been an exciting year for Android phones. Samsung wowed us with the Galaxy S24 series at the beginning of the year, the OnePlus 12 and 12R are two of the best phones available right now, and Google is expected to impress later this month with the Google Pixel 8a.

But for the last few weeks, I haven't been thinking about any of those phones. Why? Because I've been using the Honor Magic 6 RSR. After launching in China this past March, the Magic 6 RSR is now available in the EU, and that's allowed more folks than ever to get their hands on the phone. And that's great, because the Honor Magic 6 RSR has quickly become my new favorite Android phone of 2024.
It has some of 2024's best smartphone hardware

Read more
5 phones you should buy instead of the Samsung Galaxy S24 Plus
A Samsung Galaxy S24 Plus laying on concrete.

Looking to upgrade your phone this year? You may be considering Samsung’s new Galaxy S24 Plus, which is the middle child of the S24 lineup. Given how solid the S24 Plus is, that's not a bad idea at all.

But is the Galaxy S24 Plus the best phone you can get? Maybe not, as there are plenty of other great choices that you can choose from as well. Here are some of the best alternatives to the Galaxy S24 Plus that you should take a look at before spending your hard-earned dollars.
Samsung Galaxy S24 Ultra

Read more