Title :
Accurate modeling of open-ended coaxial sensor by non-uniform FDTD method
Author :
Jobava, R. ; Gheonjian, A.
Author_Institution :
Lab. of Appl. Electrodynamics, Tbilisi State Univ., Georgia
fDate :
6/21/1905 12:00:00 AM
Abstract :
The open-ended coaxial sensor is modeled by a non-uniform FDTD method. Such sensors are used for complex permittivity measurements in the MHz-GHz frequency range. The accuracy of the measurements depend greatly on the accuracy of the reflection coefficient computation. The non-uniform grid makes it possible to use very fine discretization in the critical area where the open-end of the coax is attached to the sample. The method can be used to calculate the reflection coefficient for very thin samples
Keywords :
coaxial cables; electric sensing devices; electromagnetic wave reflection; finite difference time-domain analysis; permittivity measurement; accurate modeling; coaxial line; complex permittivity measurement; measurement accuracy; nonuniform FDTD method; open-ended coaxial sensor; reflection coefficient; very thin samples; Coaxial components; Dielectric losses; Dielectric measurements; Finite difference methods; Geometry; Integral equations; Lattices; Permittivity measurement; Reflection; Time domain analysis;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 1999. Proceedings of IVth International Seminar/Workshop
Conference_Location :
Lviv
Print_ISBN :
966-02-0864-2
DOI :
10.1109/DIPED.1999.822138
