期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 485, 期 -, 页码 126-135出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2019.04.034
关键词
Magnetic metamaterial; Wireless power transfer; Defect cavity; Waveguide; Two-dimensional metasurface; Hybridization bandgap
资金
- Basic Science Research Program through the National Research Foundation of Korea [NRF-2018R1A2A2A05018621]
Magnetic metamaterials operating at low megahertz frequencies provide various important commercial and research applications. In this work, we investigate the control of wave propagation in two-dimensional (2-D) tunable magnetic metamaterials for wireless power transfer (WPT). The propagation control is achieved by using reconfigurable defect cavities formed in the metamaterial, which allows for the dynamic creation of various waveguide configurations with switching control. The physical mechanism for creating the cavity is described using Fano interference, in which the resonant frequency of the cavity falls into the bandgap of the metasurface. And the routing and transmission control of the proposed waveguide is easily achieved by resonant switching. The proposed approach allows highly localized, strong field confinement in the deep subwavelength scale of 2.6 lambda x 10(-3). The transmission losses and bandwidths of various dynamically tunable metamaterial waveguides are experimentally characterized. This result can find useful applications for integrated surface wave devices and planar WPT.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据