Title :
Uncertainty analysis of measurement of complex dielectric permittivity using microstrip transmission line
Author :
Keam, R.B. ; Holmes, W.S.
Author_Institution :
Ind. Res. Ltd., Auckland, New Zealand
Abstract :
Microstrip transmission line shows many properties which make it well suited as a medium for complex dielectric permittivity measurement. Such a system could be based on determining the effective permittivity of a microstrip line covered by an unknown dielectric substance. Simple approximate expressions for the effective permittivity are compared with a more rigorous (and hence more computationally involved) solution in order to gain some insight into the accuracy of the approximate solutions with respect to the dielectric material covering the microstrip line. Experimentally determined values of effective permittivity for various standard organic liquids are also presented for comparison
Keywords :
approximation theory; dielectric liquids; measurement errors; microstrip lines; organic compounds; permittivity measurement; spectral-domain analysis; waveguide theory; approximate expressions; approximate solutions accuracy; complex dielectric permittivity measurement; dielectric substance; effective permittivity; microstrip transmission line; spectral domain method; standard organic liquids; uncertainty analysis; Conducting materials; Dielectric materials; Dielectric measurements; Dielectric substrates; Frequency measurement; Measurement uncertainty; Microstrip; Microwave measurements; Permittivity measurement; Transmission line measurements;
Conference_Titel :
Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2674-1
DOI :
10.1109/SBMOMO.1995.509611
