Title :
Two Methods for Measuring High Permittivity at Microwave Frequencies
Author :
Thunqvist, Dag E.O. ; Solbrand, S.Gote
Abstract :
Permittivity is measured by impedance measurement on thin cylindrical samples placed in an ordinary rectangular waveguide and in a cavity formed by an ordinary coaxial transmission line. The first method does not depend on resonance and is characterized by a rather high accuracy. The second, more conventional method, is used in conjunction with the first for study of dc bias dependence of the permittivity.
Keywords :
Dielectric loss measurement; Dielectric materials; Dielectric measurements; Frequency measurement; Impedance measurement; Microwave frequencies; Microwave measurements; Permittivity measurement; Resonance; Transmission line measurements;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1968.4313695