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Wireless energy transfer technology, often heralded as the harbinger of future advancements, revolutionizes the landscape of electricity transmission by offering unparalleled flexibility, convenience, and safety. It eliminates the cumbersome need for frequent physical connections, promising a paradigm shift in energy distribution. This paper delves into the evolutionary trajectory of wireless energy transmission, elucidating various methodologies such as magnetic fields, electric fields, microwaves, lasers, and ultrasound. By harnessing electromagnetic waves and microwaves, these technologies facilitate the seamless transmission of power, akin to a wireless network, thereby transcending conventional wired setups. The discussion extends to the current applications and potential future avenues of wireless energy transmission, highlighting its pivotal role in diverse sectors including electronics, automotive, medical, aerospace, and beyond. However, amidst its promising prospects, the technology also confronts multifaceted challenges encompassing transmission efficiency, distance limitations, cost considerations, and safety concerns. As research endeavors continue to unfold, the trajectory of wireless energy transmission is anticipated to evolve towards greater efficiency, extended transmission ranges, and heightened applicability, ushering in a new era of energy distribution and utilization.
Kexin Lu (Mon,) studied this question.