We propose a retrieval procedure for extraction of electromagnetic properties of bianisotropic metamaterial (MM) slabs involving no sign-ambiguity. Toward this end, as different from the studies in the literature, we derive a closed-form expression for the intermediate variable T (propagation factor) and use it to obtain sign-ambiguity-free electromagnetic properties of bianisotropic MM slabs. We utilized 3D CST Microwave Studio to simulate scattering parameters of a bianisotropic MM slab composed of circular split-ring-resonators and to validate the derived closed-form expressions. The effects of substrate loss, geometrical parameters, and noise in S-parameters were examined to assess the capability of the proposed method.

我们提出了一种检索程序，用于提取不涉及符号模糊的双各向异性超材料 (MM) 板的电磁特性。为此，与文献中的研究不同，我们推导出中间变量T（传播因子）的闭式表达式，并用它来获得双各向异性 MM 板的无符号模糊电磁特性。我们利用 3D CST Microwave Studio 来模拟由圆形裂环谐振器组成的双各向异性 MM 板的散射参数，并验证派生的闭合形式表达式。检查了 S 参数中衬底损失、几何参数和噪声的影响，以评估所提出方法的能力。