Simulation of High-Transmission Chiral Metamaterial with Impedance Matching to a Vacuum

For a previously simulated eight-broadband negative-refraction-index chiral metamaterial, we use S-parameter retrieval methods to determine the complex effective permittivity, permeability, and the impedance. We also calculate the figure of merit, which is defined as the ratio of the real and the im...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 1; pp. 67 - 71
Main Author 贾秀丽 孟庆鑫 王晓鸥 周忠祥
Format Journal Article
LanguageEnglish
Published 2016
Subjects
Dielectric constant
Impedance matching
Magnetic resonance
Mathematical analysis
Metamaterials
Permittivity
Refraction
Simulation
传输
手征材料
提取方法
有效介电常数
材料模拟
表面等离子体
阻抗匹配
高真空
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Summary:For a previously simulated eight-broadband negative-refraction-index chiral metamaterial, we use S-parameter retrieval methods to determine the complex effective permittivity, permeability, and the impedance. We also calculate the figure of merit, which is defined as the ratio of the real and the imaginary refraction components, and compare it with those of fishnet metamaterials. The simulation results show that our chiral metamaterial exhibits high transmission and impedance matching to a vacuum. Also, we determine that the electric and magnetic dipoles of the surface plasmons play an important role in determining the nine resonance frequencies. Therefore, this investigation provides an experimental basis for developing metamaterial devices with multiple and broad resonance frequency bands.
Bibliography:11-1959/O4
For a previously simulated eight-broadband negative-refraction-index chiral metamaterial, we use S-parameter retrieval methods to determine the complex effective permittivity, permeability, and the impedance. We also calculate the figure of merit, which is defined as the ratio of the real and the imaginary refraction components, and compare it with those of fishnet metamaterials. The simulation results show that our chiral metamaterial exhibits high transmission and impedance matching to a vacuum. Also, we determine that the electric and magnetic dipoles of the surface plasmons play an important role in determining the nine resonance frequencies. Therefore, this investigation provides an experimental basis for developing metamaterial devices with multiple and broad resonance frequency bands.
Xiu-Li Jia, Qing-Xin Meng, Xiao-Ou Wang, Zhong-Xiang Zhou（ School of Science, Harbin Institute of Technology, Harbin 150001）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/1/014207