Metamaterial exhibiting left-handed properties over multiple frequency bands
Metamaterial exhibiting left-handed properties over multiple frequency bands
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DOI：
10.1063/1.1803942
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发表时间：
2004-11-01
影响因子：
3.2
通讯作者：
Kong, JA
中科院分区：
文献类型：
--
作者：
Chen, HS;Ran, LX;Kong, JA
我们提出了双波段左手超材料在微波频率下的实验测量。超材料样本由 S 形谐振器的扩展版本组成，该谐振器在可比频率下同时表现出负介电常数和负磁导率响应。实验结果清楚地表明存在两个折射率为负的频带。双左手通带是由于结构中感应出的多个电容和电感所致，可以进一步调整以实现具有多个（两个以上）左手频带的超材料。 (C) 2004 年美国物理研究所。
We present experimental measurements at microwave frequencies of a double band left-handed metamaterial. The sample of metamaterial is composed of an extended version of the S-shaped resonators that exhibit simultaneously a negative permittivity and a negative permeability response at comparable frequencies. The experimental results clearly show that there exist two frequency bands where the refraction index is negative. The double left-handed passbands are due to the multiple capacitances and inductances induced in the structure, which can be further tuned to realize a metamaterial with multiple (more than two) left-handed frequency bands. (C) 2004 American Institute of Physics.