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

Volume

43

Issue

8

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

1986

Lastpage

1989

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.402291

Filename

402291