Xiaomi has introduced Mi Air Charge Technology, which enables users to remotely charge electronic devices without any cables or wireless charging stands, Report informs, referring to Mi blog.
The core technology of Xiaomi’s remote charging lies in space positioning and energy transmission. Xiaomi’s self-developed isolated charging pile has five phase interference antennas built-in, which can accurately detect the smartphone's location. A phase control array composed of 144 antennas transmits millimeter-wide waves directly to the phone through beamforming.
On the smartphone side, Xiaomi has also developed a miniaturized antenna array with a built-in "beacon antenna" and 'receiving antenna array.'
Xiaomi remote charging technology is currently capable of 5-watt remote charging for a single device within a radius of several meters. Apart from that, multiple devices can also be charged at the same time (each device supports 5 watts), and even physical obstacles do not reduce the charging efficiency.