On a multiple reflection time domain method in dielectric spectroscopy: Application to the study of some normal primary alcohols

The authors propose a time domain method of total reflected signals on a dielectric sample in a coaxial line. This method enables the determination of the complex constant of propagation of the medium to be studied and, consequently, its complex permittivity. Contrary to other similar methods employed up to now, this method needs neither iterative calculation nor nomograms. The validity of this multiple reflection approach is illustrated by the study of several primary alcohols. The values of the permittivities and relaxation frequencies thus acquired are in good agreement with those obtained elsewhere.