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Is de-embedding necessary?

Question asked by benalcazardiego on Nov 5, 2016
Latest reply on Nov 15, 2016 by benalcazardiego

I am using a E5071C ENA

My doubt is if it is necessary to realize a de-embedding process after getting the s-parameters fromn the VNA, if the calibration process includes this step or if it depends on the calibration substrate I use. I was considering using a de-embedding process described by the following equation where Ydut is Y-matrix related to the S-matrix got from the VNA when the DUT is connected, Yopen when a open measurement is realized and Y short when a short measurement is realized
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However I do not if it is necessary to do this step when using the E5071C, or if it depends on the substrate I am using (in this case the Picoprobe CS-5)