A Perfect Metamaterial Absorber for Sensing Application of Edible Oil

The reliable characterization of cooking oils poses challenges due to the presence of minor variations in their dielectric behaviors. This research paper introduces a newly developed sensor that utilizes metamaterial technology for the purpose of analyzing cooking oils. The sensor design integrates a square split-ring resonator (S.S.R.R.) and a microstrip transmission line. The design exhibits properties of negative permittivity and permeability within the resonance frequency range. This study presents an assessment of the performance of the sensor's permittivity and absorption coefficient. The sensitivity values corresponding to the frequencies of 3.04 and 3.4 GHz are 0.64% and 0.21%, respectively. The absorption values for the frequencies are 99.9 and 99.7%, correspondingly. The q-factor values corresponding to the frequencies of 3.04 and 3.44 GHz are 1410.29 and 1148.16, respectively. A metamaterial absorber with double negative (D.N.G.) characteristics exhibits the capability to be utilized in various applications, including but not limited to microwave shielding, satellite remote sensing, and the evaluation of dielectric properties in materials.