R&S®ZVA Vector Network Analyzers
Frequency ranges from 300 kHz to 50 GHz, with two or four test ports
Modern calibration techniques
Versatile calibration techniques for all fields of application
The
The UOSM calibration technique is very similar to the TOSM technique but allows the use of an unknown through ("U") as a calibration standard, i.e. a through whose parameters (e.g. length or attenuation) need not be known. Furthermore, any adapter with an arbitrary combination of connector types can be used as a through, which makes calibration of a DUT with different connector types very convenient.
Flexible handling of calibration kits
The measurement accuracy of any network analyzer strongly depends on all electronic and mechanical parameters such as length, capacities, etc. that determine the magnitude and phase response and thus the S-parameters of the calibration standard. Of course, these parameters must be known as accurately as possible. To define calibration standards, equivalent circuits are required that incorporate all possible non-ideal situations. All Rohde & Schwarz network analyzers meet this need with clear equivalent circuit diagrams and modeling, allowing very detailed parameterization.
Definition of a match by electric delay, arbitrary impedance, and loss
Equivalent circuit to define a match, including parasitic L, C effects
In addition to defining calibration kits manually, you can conveniently install them from files – even from ASCII files from other providers. You can also switch to the measurement units used by other providers.
Automatic calibration – fast, error-free, and with high precision
While all manual calibration techniques such as TOSM, TRM, and TRL can be used for multiport measurements, they are time-consuming, error-prone, and lead to excessive wear of the calibration standard. Rohde & Schwarz offers an automatic calibration unit for coaxial one-port and multiport calibration. The unit is ready to operate immediately after being connected and performs complete four-port calibration covering 201 test points in less than 30 seconds.
