Xiaomi Air Charge Technology.
                     XIAOMI AIR 
CHARGE 
TECHNOLOGY
INTRODUCTION
Xiaomi, the world’s third-largest smartphone 
maker, unveiled Mi Air Charge Technology, 
which it says can deliver 5W power to 
multiple devices within a radius of several 
metres as the Chinese giant invited 
customers to a true wireless charging era.
Source: techcrunch.com
Detect the location 
of the smartphone
The company said it has self-developed an 
isolated charging pile that has five phase 
interference antennas built-in, which can 
accurately detect the location of the 
smartphone.
Source: techcrunch.com
Phase control 
array 
A phase control array composed of 144 
antennas transmits millimeter-wide waves 
directly to the phone through beamforming, 
the company said.
Source: techcrunch.com
Smart watches
Adding that soon the system will also be able 
to work with smart watches, bracelets and 
other wearable devices.
Source: techcrunch.com
Wireless 
Devices
Another goal is to make living rooms truly 
wireless, with speakers, lamps, and smart 
home devices all being powered by the same 
remote system. 
Source: techcrunch.com
Deployment
A company spokesperson said Xiaomi, which 
has previously introduced 80W and 120W 
wireless charging tech, won’t be deploying 
this new system to consumer products this 
year.
Source: techcrunch.com
Core technology
The core technology of Xiaomi’s remote 
charging lies in space positioning and energy 
transmission.
Source: techcrunch.com
Miniaturized 
antenna
• Xiaomi has also developed a miniaturized 
antenna array with built-in beacon 
antenna and receiving antenna array. 
• Beacon antenna broadcasts position 
information with low power consumption
Source: techcrunch.com
Receiving 
antenna
• 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.
Source: techcrunch.com
Motorola
Motorola executive also demonstrated a 
prototype remote charging system that 
appears to deliver power over the air. 
Source: techcrunch.com