Interconnected Split-Ring Resonator with Enclosed F Shape Metamaterial Absorber for Wireless Technology
dc.contributor.author | Islam, Nahidul | |
dc.date.accessioned | 2024-07-01T09:21:24Z | |
dc.date.available | 2024-07-01T09:21:24Z | |
dc.date.issued | 2024-02 | |
dc.description | This internship report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in B.Sc. Engineering Cataloged from the PDF version of the internship report. | |
dc.description.abstract | This study proposes a metamaterial absorber (MMA) based on rotational symmetry to design a wide-angle, polarization-insensitive wireless system for S, C, X, and Ku bands. The MMA comprises electric ring resonators (ERR) arranged in a single layer with four-fold interconnected rotational symmetry, fabricated using FR-4 substrate. In the frequency range of 4 to 18 GHz, the MMA shows five distinct absorption peaks. Notably, absorption levels at 4.882 GHz, 6.464 GHz, 7.882 GHz, 11.3 GHz, and 17.216 GHz reach 99.3%, 94.9%, 94.5%, 98.7%, and 92.5%, respectively. The compact unit cell, with dimensions of 0.162λ×0.162λ×0.026λ at 4.882 GHz, achieves 99% mean absorptivity. Furthermore, the MMA exhibits stable absorption characteristics across azimuth and elevation angles (phi= 0 to 90 degrees, Theta = 0 to 60 degrees). Resonances demonstrate near-zero or negative refractive index traits, offering tunable multifunctionality. The MMA's compactness, high effective medium ratio (EMR), negative permittivity, permeability, and near-zero refractive index make it suitable for various wireless applications, enhancing gain and antenna directivity in fixed-mobile and multiband scenarios. | |
dc.identifier.uri | http://dspace.iiuc.ac.bd/handle/123456789/8263 | |
dc.language.iso | en | |
dc.publisher | International Islamic University Chittagong | |
dc.title | Interconnected Split-Ring Resonator with Enclosed F Shape Metamaterial Absorber for Wireless Technology | |
dc.type | Thesis |