首页|Control of the near magnetic field pattern uniformity inside metamaterial-inspired volumetric resonators
Control of the near magnetic field pattern uniformity inside metamaterial-inspired volumetric resonators
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
In recent years metamaterial-inspired resonators, due to the ability to form desired near field patterns at subwavelength scale, have found application in various practical fields, i.e., magnetic resonance imaging or wireless power transfer. This paper proposes an approach for controlling the near electromagnetic field distribution inside the volumetric metamaterial-inspired structure based on a set of split-ring resonators or materials with high permittivity. We numerically and experimentally demonstrate how to precisely manipulate the near-field pattern's uniformity by changing the number of resonant elements while maintaining the geometric dimensions of the structure. The effectiveness of the concept was also verified via a magnetic resonance imaging study. The optimized volumetric metamaterial-inspired resonator showed an increase in transmit efficiency and receive performance of the large body coil compared to the commercial dedicated radiofrequency coil.
Ceramic resonatorsMagnetic resonance imagingMetamaterial-inspired resonatorsNear electromagnetic field controlVolumetric resonators
Jandaliyeva A.、Puchnin V.、Slobozhanyuk A.、Shchelokova A.
NSTL
Elsevier
