Propagation delay mode Cut Back type
Coplanar line method
dielectric constant and dielectric loss tangent(Dk/Df)
measurement system

In the range of 500MHz-65GHz, this system measures dielectric constant and dielectric loss tangent of liquids.
The measuring is made to cover the coplanar with a liquid of 0.2mm(approx.) thick.
The system leads to measure of dielectric constant and dielectic loss tangent of the liquid from the effective tanδ and effective dielectric constant of the dielectric forming the liquid and the coplanar line with a built-in electro magnetic field simulation of the coplanar line.
It also evaluates voltage dependence of dielectric constant and dielectric loss tangent of liquid crystal and the like by impressing Bias.

It consist of the Cut Back method using a propagation line and the merits are as follows.
*Decrease of unclearly diverged loss compared to the Probing method.
*Improvement of characteristic impedance equality
*Simplification of measurement
*Improvement of accuracy
The test kit for the Cut Back is designed to obtain characteristic impedance of 50Ω when the liquid specimen dropped.