A broad-band three-dimensional isotropic left-handed metamaterial

作者：Wang Jia Fu^*; Qu Shao Bo; Xu Zhuo; Fu Zhen Tang; Ma Hua; Yang Yi Ming

来源：Journal of Physics D: Applied Physics , 2009, 42(15): 155413.

DOI：10.1088/0022-3727/42/15/155413

A broad-band three-dimensional (3D) isotropic left-handed metamaterial (LHM) is proposed in this paper. The 3D unit cell is composed of a dielectric cube with metallic Jerusalem crosses on all its six sides. A theoretical model was set up by using equivalent-circuit theory. The magnetic and electric resonant frequencies of the proposed LHM are always equal, which guarantees the existence of a left-handed band. Numerical simulations were carried out to verify the proposed LHM. The results show that the relative bandwidth reaches up to 44.6%; the left-handed band is independent of the polarization of incident waves and is almost the same for different incident angles. Thus, the proposed LHM is a good candidate as a broad-band 3D isotropic LHM.

• 出版日期2009-8-7
• 单位中国人民解放军空军工程大学; 西安交通大学