NEGATIVE REFRACTION OF CHIRAL METAMATERIAL BASED ON FOUR CRANK RESONATORS

被引:8
作者
Garcia-Collado, A. J. [1 ,2 ]
Molina-Cuberos, G. J. [1 ]
Nunez, M. J. [1 ]
Martin, E. [1 ]
Margineda, J. [1 ]
机构
[1] Univ Murcia, Dpto Electromagnetismo & Elect, E-30100 Murcia, Spain
[2] Univ Catolica San Antonio, Dpto Ciencias Politen, E-30107 Murcia, Spain
关键词
DESIGN; MEDIA;
D O I
10.1080/09205071.2012.710447
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Here we present the experimental characterization of a new material constituted by an array of four same handedness three-dimensional cranks impressed on a dielectric substrate. Using a free-wave experimental set up, the transmission and reflection coefficients were measured, and effective values for the refractive index, permittivity and permeability, and chirality parameter were calculated. The material exhibits a high electromagnetic activity and relatively low refractive index; the joined effect of both factors results into negative values for the refraction index for one of the two circular eigenmodes in a 0.4 GHz bandwidth above the resonance frequency.
引用
收藏
页码:986 / 995
页数:10
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