Title :
Non-Destructive Measurement of Complex Permittivity for Dielectric Slabs
Author :
Decréton, Marc C. ; Andriamiharisoa, V.
Author_Institution :
Chaire d´´Electromagnétisme et d´´Hyperfréquences, Ecole Polytechnique Fédérale de Lausanne, 16, chemin de Bellerive, CH-1007 Lausanne, Switzerland.
Abstract :
A method has been developed for a precise non-destructive measurement of the dielectric constant and losses of slab-like samples, such as microstrip substrates for instance. The test setup basically consists of an open-ended rectangular waveguide whose flange is placed in contact with one side of the dielectric material, the other one being backed by a metal plate. The measured amplitude and phase of the reflection coefficient with respect to a short-circuit in the aperture plane are related to the real and imaginary parts of the permittivity by means of computer generated charts.
Keywords :
Dielectric constant; Dielectric loss measurement; Dielectric measurements; Dielectric substrates; Loss measurement; Materials testing; Microstrip; Permittivity measurement; Rectangular waveguides; Slabs;
Conference_Titel :
Microwave Conference, 1974. 4th European
Conference_Location :
Montreux, Switzerland
DOI :
10.1109/EUMA.1974.332014
