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Post subject: Deembedding and reflection coefficient Posted:
Wed Jan 11, 2006 10:51 am
Joined: Sat Feb 26,
2005 5:24 pm
Location: Lille, FRANCE
am trying to deembed measurements from TDR and i don't see why i can't
get the results i want.
I explain my problem:
I have measured
through a VNA the reflection coefficients of 3 standards (S0L), and
3 other components. I made a TDR measurement of those components and
From the TDR of the standardsi apply a fft and thanks
to the current and voltage i get the measured reflection coefficient
Knowing their true reflection coefficients thanks to the VNA, i compute
the error vectors:
problem is that when i use those vectors with TDR of the standards i
find back the good s-parameters of the standards, but when i do this
with other components i don't find at all.
Note : the time span and step, and frequency span and step permits
to work one with each other.
Can someone help me ? Thank you