9-term calibration method for network analyzers

A network analyzer with a processing device, at least one signal generator and at least four measuring points,

• wherein the processing device controls the signal generator and processes measured values picked up from the measuring points,
• wherein the network analyzer implements several calibration measurements on calibration standards, before the network analyzer implements measurements on the device under test,
• wherein the network analyzer implements the calibration measurements using at least four measuring points,
• wherein the processing device determines error matrices on the basis of the results of the calibration measurements,
• wherein the network analyzer implements measurements on the device under test using simultaneously, exactly three measuring points,
• wherein the processing device determines measured values in each case of a fourth measuring point on the basis of the results of the calibration measurements and the measured values of the three measuring points, and
• wherein the three measuring points, at which measurements are implemented, belong to the set of the at least four measuring points, at which the network analyzer implements the calibration measurements.