Journal
PHYSICS LETTERS A
Volume 346, Issue 1-3, Pages 87-91Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2005.07.013
Keywords
left-handed metamaterials; split ring resonators; defect effect
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We studied the defect effect of split ring resonators in the one-dimensional and two-dimensional left-handed metamaterials (LHMs) by a rectangular waveguide system. In the presence of the defective split ring resonators, the magnitude of transmission peaks of left-handed metamaterials markedly decreases and the bandwidth of passband is narrowed. The phase curves have a translational shift with respect to that of perfect LHMs and their slopes remain negative. The defect effect of LHMs provides a simple method to tune LHMs, thus, the advantages of negative refraction and LHMs that have been proposed recently are more feasible. (c) 2005 Elsevier B.V. All rights reserved.
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