具有随机分散共振频率的裂环谐振器系统

J. Macháč, L. Jelínek
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引用次数: 2

摘要

本文报道了一种具有随机分散共振频率的宽边耦合裂环谐振器的三维系统。这种色散是由谐振器的几何和材料参数的变化引起的。超材料的有效磁导率共振频带明显变宽,磁导率实部值减小,负磁导率频带甚至消失。本文讨论了一种旨在提高MRI成像系统成像性能的透镜的设计。通过测量矩形波导中超材料的散射参数,验证了所提出的均匀化方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A system of split ring resonators with randomly dispersed resonance frequencies
This paper reports on a 3D system of broad side coupled split ring resonators with randomly dispersed resonance frequencies. This dispersion is caused by the varied geometric and material parameters of the resonators. The resonance frequency band of the effective permeability of the metamaterial is significantly widened, the value of the real part of the permeability is reduced, or the band of negative permeability even disappears. The paper comments on the design of a lens aimed at improving the imaging properties of the MRI system. The proposed homogenization method is verified by measuring the scattering parameters of the metamaterial in a rectangular waveguide.
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