Is Apple 8wifi charging true?

Apple's latest patent "Dual-band antenna wireless charging and communication system" means that in the future, fruit powder users will use mobile phones that can be charged without a data cable and a base. Only when there is wireless, the mobile phone will not be turned off. Things are about to happen. But will the efficiency of wifi charging be high? At the same time, whether the radiation will be very large is a question worth considering.

According to reports, in theory, communication signals between 700MHz and 2700MHz can transmit wireless power in both 2.4GHz and 5.0GHz. Apple intends to transmit power through a transmitter similar to a WiFi router, thus realizing wireless charging of mobile devices and effectively increasing the charging distance.

In fact, wireless charging technology has long existed abroad. Since Nokia announced to be a member of WPC Alliance in 2009, wireless charging technology has been widely used in the mobile phone industry.