Abstract
This paper presents a modified- split H-shaped structure of a double negative metamaterial unit cell designed for a Rogers RO 3010 substrate material. The proposed structure reveals transmission resonance inside the C-band of microwave spectra and indicates a double negative (DNG) property at that resonant frequency for z-axis wave propagation. The finite integration technique based simulation tool was used to acquire unit cell parameters. Equivalent circuit model has been provided for the metamaterial. The simulated result agrees well with the calculated one. In addition, an analysis has been done with the same design by replacing the substrate material with popular FR-4 and then it behaves as a zero index metamaterial (ZIM) at the same frequency band. Further analysis has been performed for the x-axis propagation through the structure. NRI (Negative Refractive Index) and MNG (Mue-Negative) properties are found for Rogers RO 3010 and FR-4 substrate material in a row.
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