Wide-Range Measuremeet of Complex Dielectric Constants of Liquid Materials in Microwave Region by Using Sweep Oscillator

Abstract

The new measuring method of a complex dielectric constant which can observe the wide-range frequency characteristics of materials, has been developed.
In this paper, the theory of measurement, its results and discussions are described.
In this method, a simple measuring circuit is employed, and it fits particularly in the measurement of liquid mateials.
While observing the spectrum on CRT, one can easily recognize the wide-range frequency dependence of dielectric characteristics.
And also, by adjusting a plunger in specimen waveguide, even the small dielectric losses of the dielectric constants of materials can be measured.