【作者】 杨茜； 伍瑞新；

【Author】 Yang Xi;Wu Ruixin;School of Electronic Science and Engineering Nanjing University;

【机构】 南京大学电子科学与工程学院；

【摘要】 本文提出了一种双层的双L型金属超材料。通过旋转下层结构,破坏该结构在z方向上的镜像对称性,从而使得该结构具有手性特征。本文分析了不同旋转角对该结构性能的影响,旋转55°后的双L型超材料能够在9.3～15.4 GHz实现非对称传输系数大于0.5,在14.3 GHz处有最大值0.76,说明该结构在较宽的频率范围内都能表现出良好的非对称传输特性。更多还原

【Abstract】 A double-layer metallic double L metamaterial is proposed in the paper.By rotating the lower layer,mirror symmetry in the z direction of the structure is broken,making it show,chirality.This paper discussed the influence of rotation angle.When the angle equal 55,the structure can realize a large asymmetric transmission parameter greater than 0.5 at 9.3 to15.4 GHz,and reach to the max value of 0.76 at 14.3 GHz.It shows that the structure proposed in this paper exhibit an obvious phenomenon of asymmetric transmission in a wide frequency range.The influence from the lower layer’s rotation angle is also discussed in this paper.更多还原