A simple meta-material unit cell with a negative permittivity in the X band is designed in this work. This meta-material cell is a one-sided cell which is simulated to extract scattering parameters, permittivity and permeability. Four different unit cells were examined and simulated to achieve the final structure. The effects of mutual-coupling of unit cells on structural performance were also investigated. Finally, a 7*7 array was constructed from these unit cells. The measurement and simulation results were acceptably consistent. The results show that this structure has a negative refractive index in the frequency range of 9.2–11.7 GHz.

中文翻译：

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用于 X 波段应用的新型宽带 Epsilon 负超材料的设计与分析

在这项工作中设计了一个在 X 波段具有负介电常数的简单超材料晶胞。这种超材料单元是一个单侧单元，模拟它可以提取散射参数、介电常数和磁导率。检查并模拟了四种不同的晶胞以获得最终结构。还研究了单元电池的相互耦合对结构性能的影响。最后，由这些晶胞构成一个 7*7 阵列。测量和模拟结果是可以接受的一致的。结果表明，该结构在9.2-11.7 GHz的频率范围内具有负折射率。