Measurement of dielectrical properties

E4991A RF Impedance/Material Analyzer The E4991A RF impedance/material analyzer offers ultimate impedance measurement performance and powerful built in analysis function. It will provide innovations in R and D of components and circuit designers who evaluate components in the range of 3 GHz. The E4991A uses an RF-IV technique, as opposed to the reflection measurement technique, for more accurate impedance measurement over wide impedance range. Basic impedance accuracy is +/-0.8%. High Q accuracy enables low-loss component analysis. The internal synthesizer sweeps frequency from 1 MHz to 3 GHz with 1 mHz resolution. The E4991A provides the total dielectric/magnetic material measurement parameters as real and imaginary parts of complex electric permittivity and magnetic permeability, the total impedance |Z|, and some other concerning parameters.