Szczegóły publikacji
Opis bibliograficzny
Low-cost system for broadband dielectric spectroscopy of residue-forming liquids using plug-and-measure planar microwave sensor / Arkadiusz MAŁEK, Ilona PIEKARZ, Jakub SOROCKI // IEEE Transactions on Microwave Theory and Techniques ; ISSN 0018-9480 . — 2026 — vol. 74 iss. 5, s. 4458–4473. — Bibliogr. s. 4471–4472, Abstr. — Publikacja dostępna online od: 2026-02-25
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 168311 |
|---|---|
| Data dodania do BaDAP | 2026-06-29 |
| Tekst źródłowy | URL |
| DOI | 10.1109/TMTT.2026.3664936 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | IEEE Transactions on Microwave Theory and Techniques |
Abstract
A novel plug-and-measure microwave sensor system for the broadband characterization of viscous and adhesive liquids in an industrial setup is proposed in this work. Conventional sensors often require cleaning with hazardous reagents, which is costly and labor-consuming, and degrades the sensor surface over time. The proposed solution is a disposable, low-cost sensor cartridge, interfaced via card-edge connectors to the measuring system. This modular paradigm eliminates cleaning requirements. This study details an analytical model of the sensor, including a rigorous sensitivity analysis that allows for application-specific optimization for targeted permittivity ranges. A measurement system, consisting of broadband impedance-transforming microstrip-to-coplanar stripline (MS-to-CPS) transitions and a low-cost measuring instrument, the NanoVNA V2.2, is established. Another advantage of the proposed solution is the simplicity of the measurement procedure. Each cartridge requires only a Thru-standard-based de-embedding to extract feeder-free sensing Line parameters, followed by a single-standard (air) calibration to derive the sensor-specific model before proceeding with sample testing, enabling rapid characterization without reference liquids. An experimental demonstrator operating from 0.4 to 3 GHz was developed and evaluated on the samples, yielding the permittivity from 2 to 6. Validation against reference coaxial probe measurements confirms that the system achieves an in-band average real-part permittivity reference-related error of 3.29% for canola-oil measurements. Despite low-cost, single-use instrumentation, the demonstrator's accuracy is comparable to other similar state-of-the-art solutions.
