左手材料中通过改变层间距实现谐振频率的移动(英文)

Shift Resonant Frequency by Changing Space Between Layers in Left-handed Materials

为了研究周期性结构的左手材料中层间距和频率的关系,分别制作了层间距分别为3.08mm,2.93mm,2.73mm和2.33mm的棱镜形样品。用网络分析仪HP8720ES测量了电磁波通过样品折射后的强度和频率的关系图。同时还模拟了层间距为3.23mm,3.13mm,3.03mm,2.93mm和2.73mm的样品,得到了相应的频率和电磁波强度的关系曲线。实验和模拟结果一致,即:随着层间距的减小,谐振频率从高频向低频移动。

In order to study the relation between the space between layers and the resonant frequency in periodic structures left-handed materials,the prism-shaped samples are produced as the spacing of 3.08 mm,2.93 mm,2.73 mm and 2.33 mm.The diagrams of the intensity and frequency are obtained by measuring the refraction of electromagnetic waves through the samples with HP8720ES scalar network analyzer.And the curves of the electromagnetic wave frequency and intensity are simulated of the spacing for 3.23 mm,3.13 mm,3.03 mm,2.93 mm and 2.73 mm of prism-shaped samples.Experimental and simulation results are consistent,that is,the resonant frequency shifts from high frequency to low frequency with the decreasing space between layers.