Naslov
Effect of the Coaxial Dielectric Probe Diameter on Its Permittivity Sensing Depth at 2 GHz – Simulation Study

Autori
Šarolić, Antonio ; Matković, Anđela

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 23rd International Conference on Applied Electromagnetics and Communications - ICECOM 2019 / - , 2019, 1-4

Skup
23rd International Conference on Applied Electromagnetics and Communications (ICECOM 2019)

Mjesto i datum
Dubrovnik, Hrvatska, 30.09.2019. - 02.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
open-ended coaxial dielectric probe, FEKO computational electromagnetic simulation, dielectric spectroscopy measurements

Sažetak
We previously reported the simulation results of the RG405-based open-ended coaxial probe model for biological tissue sensing depth analysis. The simulation model with this specific geometry proved valid for calculating the probe perceived permittivity at 2 GHz, triggering a follow-up study on the impact of the probe size on its permittivity sensing depth. In this study, the probe dimensions were upscaled up to five times, while keeping the same relative geometry to maintain the 50 Ω coaxial line impedance. The permittivity sensing depth was again analyzed on both the non-biological water- Teflon model, and biological layered tissue model. The results clearly showed the increased permittivity sensing depth of the larger probes with respect to the smaller ones, at 2 GHz. Nevertheless, the surface layer of the analyzed non-homogeneous samples was the dominant one for all probe sizes.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA