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Wireless charging at a distance with Mi Air Charge – Xiaomi presents new technology


Mi Air Charge is a new charging technology for charging, for example, a mobile phone completely wirelessly from several meters away.

This is hardly a fast charger as the Mi Air Charge can only handle up to 5 watts. But it is a really welcome start and the technology supports up to several simultaneous devices.

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Mi Air Charge is developed by the Chinese mobile phone manufacturer Xiaomi and will reportedly also work through certain walls. A bit depending on material and distance of course.

Charging can also take place even when you walk around with your stuff. So they do not have to be stationary in the same place all the time, which is very welcome of course.

Of course, for the whole thing to work, a new charger is needed in the home. And the first model presented today is no small play if we are to believe the images that have been released. It is the size of a smaller bedside table.

The charger has five larger antennas which in turn are equipped with 144 smaller antennas. The small variants send out radio waves that are only a few millimeters in size to all the gadgets that are to be charged.

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 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 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.

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Mi Air Charge will work with a variety of different types of products. Initially, it is gadgets for the living room that apply. For example, smart speakers and lamps. Later on, the technology will work with smartwatches, activity bracelets and the like.

It is not determined exactly how big the new charger is, how much it will cost or when it can be released.

However, what is most likely is that more manufacturers will learn to jump on the bandwagon when Xiaomi has now opened the door for wireless charging. The question is – who will be the first to follow?

FAQ about My Air Charge

How fast does Mi Air Charge charge?

The first generation charger can handle up to 5 watts





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