Design and simulation of a cross split ring lefthanded materials unit structure
Yang Chen, Zhang Hong-Xin, Wang Hai-Xia, Xu Nan, Xu Yuan-Yuan, Huang Li-Yu, Zhang Ke-Xin
Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
In this paper, we present a novel compact left-handed material unit, which can generate the equivalent negative permittivity and negative permeability in the two-dimensional direction only by etching one side of the dielectric substrate. We propose a new formula for calculating the field and circuit to analyze the equivalent permittivity and the equivalent permeability that are used to explain the principle of the left-handed characteristic of the unit. In the simulation, the equivalent permittivity and permeability are calculated by the Nicolson-Ross-Weir method, and the negative refraction is verified by the prism experiment. The experiments show that the cross-ring structure unit can present left-handed properties with frequency bands appearing at 6.8–6.9 GHz in the two-dimensional incidence. The left-handed material can be used to design microwave field for its simple fabrication process.
Project supported by the National Natural Science Foundation of China (Grant Nos. 60871081, 61072136) and the Natural Science Foundation of Beijing, China (Grant No. 4112039).
Yang Chen,Zhang Hong-Xin,Wang Hai-Xia et al. Design and simulation of a cross split ring lefthanded materials unit structure. Acta Phys. Sin, 2012, 61(16): 164101.
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2012, Vol. 61 
