Microwave resonant is one of the sensors used in characterizing material and also most sensitive for measuring dielectric properties. This project proposed method due to its accuracy sensitivity. The split ring resonators were mounted on fruit sample surface observe frequency behavior, measure freshness. resonator was set at 6 GHz using FR4 lossy substrate. findings show that coupling distance ...

This research proposes a new alumina ceramic-based wireless passive temperature sensor. Using screen printing techniques, split ring resonator is created on an ceramic substrate. In this design, both the substrate material and sensitive are ceramic, size of design adjusted optimized to improve sensitivity detection. By measuring insertion loss electromagnetic waves (S21), resonant characteristi...