METAS VNA Tools

VNA Tools is a metrology software for the vector network analyzer. The development in LabVIEW started in 1998. The first version supported one-port calibration of a VNA. The latest VNA Tools version contained many more features and it is in use at many laboratories all over the world. Further development of the LabVIEW version has been discontinued. Instead a complete rewrite of the software in C# has been started in 2008 under the name VNA Tools II. The objectives of this project were to combine the functionality of the existing VNA Tools software with proper evaluation of measurement uncertainty in accordance with the guidelines of the GUM (Guide to the Expression of Uncertainty in Measurement, ISO, Geneva, 1998). The project finished successfully and VNA Tools II is now publicly available. A spin-off product of this activity is the generic uncertainty calculation software METAS UncLib.

VNA Tools II

METAS VNA Tools II is a software that is designed to compute uncertainties of S-parameter measurements:

  • It uses a VNA measurement model for N-port Vector Network Analyzers.
  • It supports the following calibration types: One Port, SOLT, GSOLT, QSOLT, Unknown Thru, TRL, Juroshek and Optimization.
  • It allows the definition of all influences that affect VNA measurements.
  • It uses the Linear Propagation module of Metas.UncLib to propagate all uncertainties through the VNA measurement model.
  • It can visualize S-parameter data with uncertainties.
  • It supports the following VNA's: Agilent ENA, PNA, Anritsu VectorStar, Hewlett Packard 8751A, 8720, 8753 and Rohde & Schwarz ZNB, ZNC, ZVA, ZVB, ZVT, ZVC, ZVM, ZVR, ZVK.

The end user license of the software allows free use of the software whereas redistribution in any form is prohibited. Registration is required to download VNA Tools II. Registered users will be notified of upgrades, bug fixes and new developments. 

VNA Data Explorer

The VNA Data Explorer is an integral part of VNA Tools II. It is available as a separate application to visualize and export S-parameter data in multiple formats with or without measurement uncertainties.

The end user license of the software allows free use of the software whereas redistribution in any form is prohibited. Registration is voluntary but recommended. Registered users will be notified of upgrades, bug fixes and new developments. 

Tutorials and Screencasts

The following VNA Tools II tutorial shows how to perform a SOLT calibration with the Test VNA. 

The video is complemented by a written tutorial describing the same measurement sequence as displayed in the video. 

Last modification 25.06.2020

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