Differential Sensors Using Microstrip Lines Loaded With Two Split-Ring Resonators
By Amir Ebrahimi, James R. Scott, Kamran Ghorbani. IEEE Sensors Journal, 2018
265 citations recorded by the source corpus.
This paper presents a microwave sensor using a pair of split-ring resonators (SRRs). The sensor is designed by loading a microstrip transmission line by two identical SRRs on its sides. Differential permittivity sensing is performed by loading the SRRs with dielectric samples. One transmission notch is observed for the identical loads, whereas the non-identical samples produce two split notches. The sensor’s operating principle is described through a circuit model analysis. A prototype of the designed sensor is fabricated and experimentally validated for verifying the differential sensing concept. The developed device can be used to compare or differentially characterize solid dielectric samples improving the robustness to environmental factors producing cross-sensitivity or miscalibration.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/6b1fa82dd725df5e50e7d722b7e06594b4261e39
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In Biomedical Engineering
In Electrical and Electronic Engineering
Citations in the corpus
- Ultrahigh-Sensitivity Microwave Sensor for Microfluidic Complex Permittivity Measurement (2019, background): “Examples are mechanical displacement and rotation sensors [2]–[8], biosensors for medical applications [9]–[13], structural health monitoring [14], [15], solid dielectric characterization [16]–[21], and permittivity measurements for liquid chemicals [22]–[36].”
- Transmission Lines Terminated With LC Resonators for Differential Permittivity Sensing (2018, methodology): “A number of differential permittivity sensors have been reported in the literature [7]–[10].”
- Differential Microwave Microfluidic Sensor Based on Microstrip Complementary Split-Ring Resonator (MCSRR) Structure (2020, unknown): “[20], [21].”