Today, Xiaomi has introduced self-developed remote charging technology the Mi Air Charge, which enables the charge of electronic devices over-the-air without any cables or wireless charging stands. The CEO of Xiaomi Lei Jun said that this technology has 17 technical patents. The core technology of Xiaomi’s remote charging lies in space positioning and energy transmission.
It's not science fiction, it's technology.
— Xiaomi (@Xiaomi) January 29, 2021
Find out more about Mi Air Charge Technology, our self-developed remote charging technology here. #InnovationForEveryone
Xiaomi’s self-developed isolated charging pile has five phase interference antennas built-in, which can accurately detect the location of the smartphone. 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”. Beacon antenna broadcasts position information with low power consumption. The receiving antenna array composed of 14 antennas converts the millimeter-wave signal emitted by the charging pile into electric energy through the rectifier circuit, to turn the sci-fi charging experience into reality.
Xiaomi’s 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), even physical obstacles do not reduce the charging efficiency.
Xiaomi also said that in the future, this new charging technology will also be able to work with smartwatches, bracelets, and other wearable devices. Soon our living room devices, including speakers, desk lamps, and other small smart home products, will all be built upon a wireless power supply design, completely free of wires, making our living rooms truly wireless.
