Wireless charging is a technology that uses electromagnetic wave induction principle or other related AC induction technology to send and receive inductive AC signals with the corresponding equipment at the sending end and the receiving end. Of course, the transformation from theory to practice is not done overnight, with the progress of technology, until more than 100 years later in the 21st century, wireless charging technology has gradually begun to be applied in the consumer market. At present, the low-power wireless charging applied to mobile devices uses electromagnetic induction mode, while the high-power high-power wireless charging applied to the automotive field often uses resonance mode.
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WattUp, on the other hand, uses a rare type of radio wave. Using an antenna array to emit a variety of controlled beams of 5.8GHz radio waves, Dialog's SmartBond Bluetooth low power solution serves as an out-of-band data communication channel between wireless transmitters and receivers. In this way, a small energy packet is formed around the device, and in this energy packet, the device's receiving antenna can receive this RF energy and then charge the battery.