Negative Refraction of a Symmetrical π-shaped Metamaterial
YAN Chang-Chun1,2, CUI Yi-Ping1, WANG Qiong1, ZHUO Shing-Chuang1
1Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 2100962School of Physics and Electronic Engineering, Xuzhou Normal University, Xuzhou 221116
Negative Refraction of a Symmetrical π-shaped Metamaterial
YAN Chang-Chun1,2;CUI Yi-Ping1;WANG Qiong1;ZHUO Shing-Chuang1
1Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 2100962School of Physics and Electronic Engineering, Xuzhou Normal University, Xuzhou 221116
摘要A symmetrical π-shaped metamaterial is investigated. Numerical simulations exhibit the negative-refractive property of this structure. The complex refractive index n, wave impedance z, effective permittivity ε and effective permeability μ have been retrieved from the simulated S parameters. The negative-refractive band lies between 11.2GHz and 13.05GHz. The frequency band with high transmission with low loss occurs between 11.95GHz and 12.5GHz, which is helpful for practical applications. The mechanism of the electromagnetic resonance is also revealed.
Abstract：A symmetrical π-shaped metamaterial is investigated. Numerical simulations exhibit the negative-refractive property of this structure. The complex refractive index n, wave impedance z, effective permittivity ε and effective permeability μ have been retrieved from the simulated S parameters. The negative-refractive band lies between 11.2GHz and 13.05GHz. The frequency band with high transmission with low loss occurs between 11.95GHz and 12.5GHz, which is helpful for practical applications. The mechanism of the electromagnetic resonance is also revealed.
(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
引用本文:
YAN Chang-Chun;CUI Yi-Ping;WANG Qiong;ZHUO Shing-Chuang. Negative Refraction of a Symmetrical π-shaped Metamaterial[J]. 中国物理快报, 2008, 25(2): 482-484.
YAN Chang-Chun, CUI Yi-Ping, WANG Qiong, ZHUO Shing-Chuang. Negative Refraction of a Symmetrical π-shaped Metamaterial. Chin. Phys. Lett., 2008, 25(2): 482-484.
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