Negative Refraction of a Symmetrical π-shaped Metamaterial  

作　　者：闫长春 崔一平 王琼 卓士创 

机构地区：[1]Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096 [2]School of Physics and Electronic Engineering, Xuzhou Normal University, Xuzhou 221116

出　　处：《Chinese Physics Letters》2008年第2期482-484,共3页中国物理快报（英文版）

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 11.2 GHz and 13.05 GHz. The frequency band with high transmission with low loss occurs between 11.95 GHz and 12.5 GHz, which is helpful for practical applications. The mechanism of the electromagnetic resonance is also revealed.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 11.2 GHz and 13.05 GHz. The frequency band with high transmission with low loss occurs between 11.95 GHz and 12.5 GHz, which is helpful for practical applications. The mechanism of the electromagnetic resonance is also revealed.

关 键 词：PULSARS x-ray spectra relativity and gravitation REDSHIFT 

分 类 号：TB3[一般工业技术—材料科学与工程]