ABSTRACT This study introduces the conceptual development and evaluation of a microwave sensor based on a split ring resonator as a metamaterial structure, aimed at achieving enhanced Q ‐factor for solid characterization. The proposed configuration utilizes the resonant characteristic inherent to metamaterials and exploits the substantial coupling between electromagnetic fields to facilitate high Q ‐factor deriving sharp resonance at 2.16 GHz for solid detection. The suggested sensor is simulated in HFSS software for common substrates used in antenna fabrication, such as FR‐4 and Rogers. The results demonstrate that variations in the different dielectric constant and height of solid under test (SUT) cause corresponding shifts in the resonant frequency. Due to the high Q ‐factor, this design provides widespread applications like new material detection and quality control processes industries. The Q ‐factor of proposed sensor is 42.2 at 2.16 GHz. In addition, the sensor sensitivity and dimensions are 1.63%, 0.28 λ 0 ×0.28 λ 0 ×0.02 λ 0 where λ 0 indicates the wavelength in free space, respectively.
Ghafourivayghan et al. (Thu,) studied this question.