Title :
Characterization of dielectric materials with the finite-element method
Author :
Coccioli, Roberto ; Pelosi, Giuseppe ; Selleri, Stefano
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
fDate :
7/1/1999 12:00:00 AM
Abstract :
A technique to characterize homogeneous and inhomogeneous dielectric materials based on measurements and computations is presented. The first step of the method proposed consists of measuring the resonant frequencies of an arbitrarily shaped cavity containing an arbitrarily shaped sample of the material under test. In the second step, the measured data are used in two different algorithms, both based on the finite-element method, to solve for the dielectric constant
Keywords :
cavity resonators; finite element analysis; inverse problems; microwave measurement; permittivity measurement; FEM; arbitrarily shaped cavity; arbitrarily shaped sample; dielectric constant; dielectric materials; finite-element method; homogeneous dielectric materials; inhomogeneous dielectric materials; materials characterization; permittivity estimation; resonant frequency measurement; Dielectric materials; Dielectric measurements; Finite element methods; Frequency measurement; Geometry; Inverse problems; Materials testing; Permittivity measurement; Resonant frequency; Shape measurement;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
