Methods for Controlling the Locality of Coaxial Resonator Probes in Microwave Sensorics
| Authors | I.M. Shcherban |
| Affiliations |
Kharkiv National University of Radioelectronics, 61166 Kharkiv, Ukraine |
| Е-mail | ihor.shcherban@nure.ua |
| Issue | Volume 18, Year 2026, Number 3 |
| Dates | Received 09 April 2026; revised manuscript received 24 June 2026; published online 26 June 2026 |
| Citation | I.M. Shcherban, J. Nano- Electron. Phys. 18 No 3, 03002 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(3).03002 |
| PACS Number(s) | 41.20.Jb, 07.79 - v, 77.22 - d |
| Keywords | Resonator measuring transducer, Microwave sensor, Coefficient of inclusion of an object in the resonator field, Permittivity (3) , Resonant frequency, Quality factor, Conversion characteristics. |
| Annotation |
This paper discusses methods for controlling the locality of microwave diagnostics of small objects using resonator aperture sensors with coaxial symmetry. The paper presents the results of a study of the electrodynamic properties of coaxial resonator probes developed for local microwave diagnostics of physical objects. An analysis of the factors that in-fluence the depth of penetration of the electromagnetic field into the object under study was carried out. Attention is paid to analyzing the influence of the aperture assembly geometry on the sensor's measurement signals and the electrodynamics of processes within the model, which was developed using a numerical method. The influence of the gap in the probe-object system, as well as the tip size and shape, on the field distribution of a classic quarter-wave resonator measuring transducer is demonstrated. The results of a study of a compact version of the coaxial probe are presented. The effect of reducing the storage section of the resonator on the field distribution in the object under study is demonstrated. It is shown how significantly the electric field energy and the achievable locality of measurements change when filling the storage section of the resonator with fluoroplastic. |
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