Admittance models for open ended coaxial probes and their place in dielectric spectroscopy
- 1 December 1994
- journal article
- Published by IOP Publishing in Physics in Medicine & Biology
- Vol. 39 (12), 2183-2200
- https://doi.org/10.1088/0031-9155/39/12/004
Abstract
Starting from a rigorous formulation for the admittance of an open ended coaxial probe, this paper identifies the simplifying assumptions that are introduced to obtain more practical solutions. The predictions of the models are compared to each other and to experimental data obtained on an independently calibrated experimental set-up. The advantages and limitations of a model are determined by the theoretical derivation and the numerical solution. The model identified as most suitable for the measurement of the dielectric properties of biological materials is used to determine the relative permittivity and conductivity of muscle and skull bone in the frequency range 1 MHz to 20 GHz.This publication has 15 references indexed in Scilit:
- Dielectric measurements using a rational function modelIEEE Transactions on Microwave Theory and Techniques, 1994
- Noninvasive electrical characterization of materials at microwave frequencies using an open-ended coaxial line: test of an improved calibration techniqueIEEE Transactions on Microwave Theory and Techniques, 1990
- Design optimization of a high precision microwave complex permittivity instrumentation system for use with high loss liquidsIEEE Transactions on Instrumentation and Measurement, 1990
- A critical study of the open-ended coaxial line sensor technique for RF and microwave complex permittivity measurementsJournal of Physics E: Scientific Instruments, 1989
- A Quasi-Static Analysis of Open-Ended Coaxial Lines (Short Paper)IEEE Transactions on Microwave Theory and Techniques, 1987
- Use of time domain spectroscopy for measuring dielectric properties with a coaxial probeJournal of Physics E: Scientific Instruments, 1986
- Measurement of Radio Frequency Permittivity of Biological Tissues with an Open-Ended Coaxial Line: Part IIEEE Transactions on Microwave Theory and Techniques, 1982
- Reflection of an open-ended coaxial line and application to nondestructive measurement of materialsIEEE Transactions on Instrumentation and Measurement, 1981
- In Vivo Probe Measurement Technique for Determining Dielectric Properties at VHF through Microwave FrequenciesIEEE Transactions on Microwave Theory and Techniques, 1980
- The dielectric properties of formamide, ethanediol and methanolJournal of Physics D: Applied Physics, 1978