Title :
Further analysis of open-ended dielectric sensors
Author :
Okoniewski, M. ; Anderson, J. ; Okoniewska, E. ; Caputa, K. ; Stuchly, S.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
8/1/1995 12:00:00 AM
Abstract :
The effect on the input reflection coefficient of the dimensions of open-ended coaxial lines is investigated. Using a standard FDTD technique, the effects of variations in the flange and conductor dimensions on the reflection coefficient of a 3.6 mm coaxial line immersed in water or methanol are simulated. Simulation results are compared with measurements and previous moment method calculations. It is found that the presence or absence of a flange affects the input reflection coefficient substantially in some cases. The results also show that inversion formulas developed for lines with infinite flanges are not valid for flanges with finite radii
Keywords :
coaxial cables; dielectric devices; dielectric measurement; electric sensing devices; finite difference time-domain analysis; microwave measurement; FDTD technique; conductor dimensions; flange dimensions; input reflection coefficient; inversion formulas; open-ended coaxial lines; open-ended dielectric sensors; Coaxial components; Conductors; Dielectrics; Finite difference methods; Flanges; Methanol; Moment methods; Reflection; Sensor phenomena and characterization; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
