Permittivity measurements using a short open-ended coaxial line probe
- 1 November 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 1 (11) , 337-339
- https://doi.org/10.1109/75.93904
Abstract
Improvements for permittivity measurements with short, open-ended coaxial line probes are achieved by using a more accurate formulation and by adding a finite conductor flange at the aperture of the probe. A conductor flange with a diameter of about 10 times the outer diameter of the coaxial line greatly improves the performance of the coaxial line probe. For a probe without a flange, a three-term admittance formula with calculated coefficients gives good measured results as compared to standards. However, for a probe with flange, a two-term admittance formula with a calibration coefficient gives better measured results.<>Keywords
This publication has 4 references indexed in Scilit:
- An experimental technique for in vivo permittivity measurement of materials at microwave frequenciesIEEE Transactions on Microwave Theory and Techniques, 1990
- A Quasi-Static Analysis of Open-Ended Coaxial Lines (Short Paper)IEEE Transactions on Microwave Theory and Techniques, 1987
- Dielectric measurements with an open-ended coaxial probeIEE Proceedings H Microwaves, Antennas and Propagation, 1987
- Coaxial Line Reflection Methods for Measuring Dielectric Properties of Biological Substances at Radio and Microwave Frequencies-A ReviewIEEE Transactions on Instrumentation and Measurement, 1980