Parametric analysis of epsilon-negative (ENG) and near zero refractive index (NZRI) characteristics of extraordinary metamaterial for 5g millimetre-wave applications

Abstract

A tuneable single layer metamaterial (MTM) unit cell comprised of symmetric H-shaped resonators for 5G applications is proposed with epsilon negative (ENG) between 28 - 32 GHz, near zero permeability along the entire frequency range, and near zero refractive index between 28 - 32 GHz. The constructed design offers wide operational frequency range of 24.6 - 31.8 GHz with transmission coefficient resonances (S21) at 28 GHz. The symmetric resonating patch is partitioned into four comparable and equal quartiles, with an H-shaped resonator in each quartile. The metamaterial copper metallic layer is constructed on a Rogers (RT-5880) substrate and has dimensions of 9 × 9 mm2. The scattering parameter for the interaction with the electromagnetic wave is introduced the interesting properties of the effective parameter. The compactness of the subwavelength based metal-dielectric based resonator is related to the tailored metallic design. Numerical simulation of the proposed design is executed in CST microwave studio.