Resonant and antiresonant frequency dependence of the effective parameters of metamaterials

The numerical analysis of the electromagnetic response of two metamaterials which include an array of split ring resonators (SRR) and an array of thin metallic cut wires was presented. It was found that the effective parameters of these systems exhibit resonant and antiresonant behavior similar to that found in the double-negative metamaterials. The antiresonant behavior of the thin wires was due to the refractive index possessing finite spatial periodicity. The results show that the observed seemingly unphysical behavior of effective material parameters is an intrinsic property of composites.

Duke Scholars

Author David R. Smith Electrical and Computer Engineering