Journal
2022 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS 2022)
Volume -, Issue -, Pages 263-266Publisher
IEEE
DOI: 10.1109/IMS37962.2022.9865376
Keywords
Microwavesensors; microplastics; planar resonators; smart environment; disposable sensors
Funding
- Natural Sciences and Engineering Research Council of Canada/Environment and Climate Change Canada (NSERC/ECCC)
- Rogers Corporation
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This paper introduces a method for non-contact microplastic concentration monitoring using a sensitivity-enhanced planar microwave sensor. The sensor platform consists of a dual-resonator tag and a passive microwave reader, allowing for real-time monitoring of microplastic deposition in liquid.
In this paper, non-contact microplastic concentration monitoring is enabled using a sensitivity-enhanced planar microwave sensor. The sensing platform is a tag-reader structure that consists of a dual-resonator tag and a passive microwave reader. The dual-tag structure is combined with a silicon reservoir as a sample container and is energized through the electromagnetic (EM) coupling with the reader. The extremely sensitive area of the tag resonators is exposed to the sample under the test; it creates an exceptional microplastic deposition monitoring with the concentration of the microplastic in the liquid under the test as low as 400K particles/L. The sensor monitors the deposition of microplastic particles in the mixed liquid in a real-time manner and reflects it as the frequency resonance variation in the transmission response.
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