Wireless power transfer is not a new term nowadays. Many of us have been using it for the past few years to charge up our smart devices. But all of the commercially available solutions are based on magnetic coupling, ie even though it's wireless power transmission, the transmitter and receiver need to be in very close proximity. There are studies on microwave-based wireless power transmission systems, but the microwave-based solutions were never implemented commercially because of their obvious disadvantages such as low efficiency, Weather interference, safety concerns and many more. Recently GURU Wireless, a tech company that works on wireless power transmission solutions, claimed that they have pioneered the microwave power transmission technology.
As per their claim, they have now miniaturised the solution with technology with higher efficiency by using a 24GHz millimetre wave spectrum. As per their website, their scalable modules, which include transmitting or receiving antennas for a complete end-to-end solution, are powered by a lineup of advanced millimetre wave ICs that deliver low-cost and high performance through an unprecedented level of integration for wireless energy transfer, and the heart of the system is a proprietary custom ASIC with a highly integrated design, intelligent algorithms and custom software, all designed from the ground up to deliver the best performance and efficiency in the industry. Their claim even extends to where they have demonstrated a drone with an uninterrupted flight time of 96 hours. Apart from these claims, there are very few details available about their technology.
