Negative refraction of a symmetrical pi-shaped metamaterial

作者：Yan Chang Chun; Cui Yi Ping^*; Wang Qiong; Zhuo Shing Chuang

来源：Chinese Physics Letters, 2008, 25(2): 482-484.

A symmetrical pi-shaped metamaterial is investigated. Numerical simulations exhibit the negative-refractive property of this structure. The complex refractive index n, wave impedance z, effective permittivity epsilon and effective permeability mu 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.

• 出版日期2008-2
• 单位东南大学; 江苏师范大学