According to Hatem Zeine, founder and chief technology officer of Ossia, the 5.8GHz wireless charging system not only improves the flexibility of transmitter and receiver size, but also optimizes the directivity function of RF wireless charging technology. He further explained that Higher frequency wireless charging systems can accommodate more antennas than low frequency systems in the same size transmitter and increase the power delivered to the receiver; in other words, manufacturers can use 5.8 GHz radio wave technology to reduce transmitter size. It also provides the same charging power as the 2.4GHz system.
In addition, the 5.8GHz wireless charging system can support directional wireless power transmission. Because the signal wavelength of high-frequency radio waves is shorter, the high-band power signal has stronger concentration than the low frequency band, which can improve transmission efficiency and Accuracy, the receiver receives more power. With the short wavelength of high-frequency radio waves, manufacturers can also reduce the size of the charging system receiver to suit the battery size available today.
Zeine pointed out that the Cota charging system can charge multiple devices in the transmission range, and even if the device is moving or not in the line of Sight of the transmitter, power transmission can be performed.
Ossia CEO Mario Obeidat said that in addition to working to increase the transmission power of long-distance charging, the company is also working to reduce the cost of the entire charging system. It is hoped that more new applications, such as electronics, can be exploited through cost reduction. The development of the shelf label (Electronic Shelf Labels), or the improvement of the existing smart phone charging case.
The Cota charging system enables true wireless power transfer without the need to configure plugs, wires and charging pads. However, to see the Cota charging system and the smartphones that support it, you may have to wait a while. Zeine had previously revealed to the media that its wireless charging products will be available in 2018. However, a spokesperson for the company said that the time-to-market for the product will be slightly delayed, and it is expected to be launched as early as 2018 or early 2019. Product prototype.