Chen Xudong, Wu Bae-Ian, Kong Jin Au, Grzegorczyk Tomasz M
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Apr;71(4 Pt 2):046610. doi: 10.1103/PhysRevE.71.046610. Epub 2005 Apr 18.
We propose a method to retrieve the effective constitutive parameters of a slab of bianisotropic metamaterial composed of split-ring resonators from the measurement of the S parameters. Analytical inversion equations are derived for homogeneous loss-less bianisotropic media, and a numerical retrieval approach is presented for the case of lossy bianisotropic media. The method is verified both analytically and numerically, and it is shown that the results for various split-ring resonator metamaterials qualitatively corroborate the conclusions found in published papers. The proposed retrieval method can be used as a valuable tool for the study of anisotropic and bianisotropic properties of metamaterials.
我们提出了一种从S参数测量中获取由裂环谐振器组成的双各向异性超材料平板有效本构参数的方法。推导了均匀无损双各向异性介质的解析反演方程，并针对有损双各向异性介质的情况提出了一种数值反演方法。该方法通过解析和数值方法得到了验证，结果表明，各种裂环谐振器超材料的结果在定性上证实了已发表论文中的结论。所提出的反演方法可作为研究超材料各向异性和双各向异性特性的有价值工具。
