Patent ID: 7075312

Claim:
A process for correcting errors by de-embedding of scattering parameters measured with an n ports comprising vector network analyzer, of a device under test connected with the ports, said process comprising: performing up to k = n Â· n - 1 2 2-port calibrations on different calibration standards switched onto the ports in an active state in optional succession as a basis for a first error correction of measured scattering parameters of a device under test, wherein n is an integer greater than 1; and determination of reflection parameters of at least some of the n ports in an inactive state with the availability of results from 2-port measurements on at least one calibration standard switched onto the ports in the active state and/or the inactive state as a basis for a second error correction of at least a part of the measured scattering parameters corrected with the first error correction of the device under test.