Title :
Microwave characterization of heterogeneous materials in transmission lines: a model with resonators
Author :
Lefrancois, S. ; Pasquet, D. ; Maze-Merceur, G.
Author_Institution :
CESTA, CEA, Le Barp, France
Abstract :
Problems of measurement appear when characterizing heterogeneous materials at microwave frequencies in transmission lines or waveguides, even when these materials are known to be homogenizable. A model for a perturbed line is introduced. The measurement cell containing the sample is represented by an unperturbed line in series with resonators which model the coupling between the sample and the measurement cell. Finally, the intrinsic characteristics of the material are computed from the unperturbed line.<>
Keywords :
microwave measurement; transmission line theory; coupling; heterogeneous material; measurement cell; microwave characterization; perturbed line; resonator model; transmission line; unperturbed line; Couplings; Frequency measurement; Microwave frequencies; Microwave measurements; Transmission line measurements;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335180
