Aug 12, 2022 · The study aim was to validate that dielectric permittivity measurement using the open-ended coaxial probe can be reliably modeled using electromagnetic modeling and simulations, followed by the postprocessing calculations based on …

Using a set of simulations mimicking four 50 Ω coaxial cable diameters, we demonstrate that the penetration depth in both water and saline has a clear dependence on probe diameter but is remarkably uniform over frequency and with respect to the intervening liquid permittivity.

Fixtures are available that are based on coaxial probe, parallel plate, coaxial/ waveguide transmission lines, free space and resonant cavity methods. The easy-to-use materials measurement software streamlines the process of measuring …

The main objective of this thesis is to characterize, using the ADS software, the coaxial probe provided by the faculty ETSETB and utilize such probe in order to calculate the permittivity of different materials.

Jun 5, 2018 · The open-ended coaxial probe has become the most commonly used method to measure the dielectric properties of tissues for several reasons: The method is simple; sample handling is minimal and non-destructive; and both ex vivo and in vivo measurements over a broad frequency range are possible [39,42,43,72,94].

We investigate the sensing volume of 2.2- and 3.58-mm-diameter flange-free coaxial probes for both low- and high-water-content tissue using standard liquids that exhibit dielectric properties similar to breast tissue over the microwave frequency range from 1 to 20 GHz.

Abstract: A stainless steel open-ended coaxial probe was developed to measure the complex permittivity of solid dielectric materials at elevated temperatures and over a broad frequency range.

The paper is concerned with the use of an open-ended coaxial-line probe for making dielectric measurements on lossy materials. The input reflection coefficient of the probe is measured with a network analyser, and the permittivity is determined using an approximate circuit model for the probe admittance.

Abstract: This work presents a new method to measure the complex dielectric permittivity (CDP) variation of materials under test (MUTs) with open-ended coaxial probes. The CDP variation of an MUT is a continuous function of frequency as modeled with various dielectric relaxation models.

We propose an improved probe technique that greatly diminishes artifacts arising from variation of the probe from nominal dimensions, and radiation conductance above 1 GHz. Published in: 1987 IEEE MTT-S International Microwave Symposium Digest