An Ultra-Sensitivity Cancellation Type Sensor Based on Microstrip Meander-Line
3rd IEEE International Conference on Circuits and Systems, ICCS 2021
; : 59-63, 2021.
Article
in English
| Scopus | ID: covidwho-1774639
ABSTRACT
The analysis of dielectric properties in Novel Coronavirus (COVID-19) has become an important research branch since the outbreak of the epidemic in 2019. In order to detect the dielectric properties of microfluidics like virus with higher sensitivity, a radio frequency sensor model is proposed in this paper. First, based on the excellent characteristics of the microstrip meander-line such as more concentrated electric field distribution, the microstrip meander-line is introduced into the design of traditional cancellation sensor, which is called the meander sensor. Then, the relationship between transmission coefficients of the system and dielectric properties of microfluidics is given in this paper. The simulation results verify the ultra-sensitivity of the meander sensor. Even though the relative permittivity of microfluidics is changed in the order of magnitude 10-2, the measurement results of the meander sensor also change significantly. However, the straight sensor can only measure changes of relative permittivity in the order of magnitude 10-1. What's more, there is a more concentrated measurement range for the meander sensor. This will be more practical for measuring weak changes of dielectric properties caused by the microfluidics itself and its interactions. © 2021 IEEE.
microfluidics; microstrip meander-line; permittivity; radio frequency sensor; ultra-sensitivity; Coronavirus; Electric fields; Electric lines; Fluidic devices; Radio waves; Coronaviruses; Dielectrics property; High sensitivity; Meander line; Micro-strips; Orders of magnitude; Radio frequency sensors; Relative permittivity
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Scopus
Language:
English
Journal:
3rd IEEE International Conference on Circuits and Systems, ICCS 2021
Year:
2021
Document Type:
Article
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