Time-domain study of vortexlike interface mode in metamaterials
Time-domain study of vortexlike interface mode in metamaterials
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DOI：
10.1063/1.2818677
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发表时间：
2007-11
影响因子：
4
通讯作者：
Youzhen Wang;Yewen Zhang;Li He;Hong-qiang Li;Hong Chen;Fuqiang Liu;C. Caloz
中科院分区：
文献类型：
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作者：
Youzhen Wang;Yewen Zhang;Li He;Hong-qiang Li;Hong Chen;Fuqiang Liu;C. Caloz
使用时域测量对超材料中涡旋界面模式的特性进行了实验研究。涡旋显示在传统的右手传输线（RH TL）和复合右/左手传输线（CRLH TL）之间的界面中。时域实验得到了两条线的相速度，与仿真和理论结果吻合较好。实验表明，从 CRLH TL 到 RH TL 的群延迟比传统微带耦合器的群延迟长得多，这表明涡旋模式导致传播缓慢。
The properties of vortexlike interface mode in metamaterials are experimentally studied using time-domain measurement. Vortices are illustrated in the interface between a conventional right-handed transmission line (RH TL) and a composite right/left-handed transmission line (CRLH TL). Time-domain experiment obtained the phase velocities of the two lines, which agrees well with the simulation and theoretical results. The group delay from the CRLH TL to the RH TL is experimentally shown much longer than that of the conventional microstrip coupler, which indicates that vortex mode leads to slow propagation.