Quasi-bound states in the continuum (BICs) of metasurfaces are electromagnetic resonances with a high-quality ($Q$) factor embedded in a radiative continuum. The magnetic dipole type of the quasi-BIC (quasi-MDBIC) is associated with resonant enhancement of magnetic field near the metasurface. Here we show that the quasi-MDBIC of a compact dielectric metasurface can provide resonant enhancement of wireless power transfer (WPT) to single and multiple receivers. Furthermore, the proposed physical mechanism can also be applied in the resonant coupling WPT systems. It is anticipated that our results can be generalized and applied in other physical systems.

中文翻译：

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无线功率传输连续谱中的磁拟束缚态

超表面连续体（BIC）中的拟束缚态是具有高质量（$问$）嵌入到辐射连续体中的因子。准BIC（准MDBIC）的磁偶极子类型与超表面附近磁场的共振增强相关。在这里，我们表明，紧凑的介电超表面的准MDBIC可以为单个和多个接收器提供无线电力传输（WPT）的共振增强。此外，所提出的物理机制也可以应用于共振耦合WPT系统中。可以预期，我们的结果可以被推广并应用于其他物理系统。