Wireless power transfer refers to the use of electromagnetic waves to directly transmit energy from a source to loads without the need for cables or waveguide structures.As a new way of energy transfer and utilization,this technology can greatly improve the safety,reliability,and convenience of power devices,and may be applied in scenarios that require a high degree of freedom,such as consumer electronics,automated industrial workshops,and artificial intelligence platforms.Nevertheless,there are some limitations;in particular,magnetic resonance wireless power transfer,the technology of prime interest,still faces significant challenges in balancing efficiency and stability.Within the framework of near-field resonance wireless power transfer,this paper describes the control mechanism of non-Hermitian physics,as well as its outstanding advantages with regard to efficiency,stability,idle power loss,electromagnetic environment compatibility,and other aspects.Finally,the future research directions of wireless power transfer technology are summarized.
关键词
非厄米物理/宇称—时间对称/连续域束缚态/无线电能传输
Key words
non-Hermitian physics/parity-time symmetry/bound state in the continuum/wireless power transfer