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A polarization-independent metamaterial analog of electromagnetically induced transparency (EIT) at microwave frequencies for normal incidence and linearly polarized waves is experimentally and numerically demonstrated. The metamaterial consists of coupled “bright” split-ring resonators (SRRs) and “dark” spiral resonators (SRs) with virtually equal resonance frequencies. Normally incident plane waves...
This paper reports a design of broadband Left-Handed compact waveguide. In order to improve the Left-Handed transmission bandwidth, metamaterial constructed from modified split ring resonators are filled into the metallic waveguide. Transmission losses have been reduced by the use of inductive windows interleaved between consecutive resonators. Making use of these structures, it provides more availability...
In this letter, a further miniaturization approach for the exiting MCR design extending analysis to 3D isotropic case. It is shown that the subwavelength resonance occurs when transversal permeability components have opposite signs. In this case, the rectangular cavity supports subwavelength resonance, and the width and length of such the rectangular cavity resonator can be in principle simultaneously...
In this paper, an improved miniaturized cavity resonator (IMCR) dependent on double negative metamaterial (DNG) and epsilon-negative material (ENG) layers is designed and optimized. The length and width of the IMCR are simultaneously shortened to the half of a conventional cavity resonator. The IMCR is numerically simulated, results show that the resonance phenomenon in the IMCR is observed clearly,...
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