基于三角形开口谐振环的异向介质特性研究

Characteristic of metamaterials composed of triangular open loop resonators

以三角形开口谐振环代替传统的开口谐振环(SRR),利用其谐振特性激励磁响应从而实现负磁导率。设计了两种三角形开口谐振环加线的异向介质结构,分别通过参数提取、棱镜仿真以及能量传输实验等三种方法验证其左手特性。结果表明,在分别由两种结构组成的棱镜实验中,根据斯涅尔定律计算出的折射率与各自的参数提取结果相同;同时,二者负折射率频段与能量透射频段基本一致。

The triangular open loop resonator (TOLR) can replace the role of traditional split ring resonator (SRR) to motivate magnetic resonance so as to generate negative permeability. Two kinds of TOLR plus wire structures are designed to construct metamaterials and they are validated to behave the characteristic of left-handed through parameter retrieval algorithm,prism simulations and the transmission experiments. The results show that each calculated negative refraction index obtained by prism simulations based...