New Advanced De-Embedding Software from Constant Wave Introduced for Vector Network Analyzers

Published:2012/2/16 2:54:00 Author:Amy From:SeekIC

Recently, Constant Wave has released the latest version of its software for operation with Vector Network Analyzers: Spectro VNA Pro version 2.3. This new device includes a number of industry-first capabilities on the basis of Constant Wave’s innovative de-embedding methodology: Time Domain Substitution (patent pending). This device features S-parameter resampling of acquired data and the ability to create an equivalent 2‐port network which can be used to de‐embed a Device Under Test (DUT) from measured S‐parameters in a more traditional way.

S-parameter Resampling is customary for the frequencies and it is used to make S‐parameter measurements form a harmonic data set. However, if an engineer has not appropriately sampled an S-parameter with the Vector Network Analyzer (VNA), measurement accuracy can be compromised. If the original data is not derived from a harmonic calibration, Spectro VNA Pro can resample the data easily, the engineer does not need to recalibrate the VNA and make a new measurement.

As for De-embedding 2-Port Network, DUT being measured by a Vector Network Analyzer is not simply a single device. The DUT may contain connectors, cables, transmission lines, and other components which lie between the calibration reference plane and the target device being measured. While conventional test methods compensate for measurement errors up to the calibration reference plane, the intervening components represent another source of measurement error.

Spectro VNA Pro’s new De-Embedding 2-Port function is derived from the Time Domain Substitution methodology. The software characterizes 2-port adapters or networks quickly and creates a de-embedding file which can be put back into a VNA.

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