A Computer Program for Short-Circuited Waveguide Dielectric-Properties Measurements on High-or Low-Loss Materials^*

A novel approach of measuring the dielectric properties of PET preforms for stretch blow moulding

“…At high frequency, a section of a transmission line such as a coaxial cable or a rectangular waveguide can be used. [1][2][3]6 For low loss dielectric properties measurements, cavity resonators are used in the full mode or perturbation mode. All these techniques require that a sample must be manufactured from its virgin state to a preferred geometry.…”

“…The early research on dielectric properties measurements are very basic as illustrated by hand calculations performed by Von Hippel 1 or by the developed batch mode program described by Nelson et al 2,3 In both instances, to obtain the dielectric properties, the solutions of a complex transcendental equation must be found. Von Hippel 1,4 measured the voltage standing wave ratio (VSWR) as the microwave physical response from the sample.…”