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...

a compact and sharp-rejection ultra-wideband (uwb) microstrip bandpass filter (bpf) is presented. the proposed filter is constructed with multiple-mode resonator (mmr) and split ring resonator (srr). moreover, proposed structure consists of two doublets parallel coupling gaps at each side of a microstrip ring. in comparison with some other filters, this structure shows a significantly wider pas...