[SI-LIST] 4-Port VNA calibration question

  • From: Virendra <adsurevv@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx, istvan.novak@xxxxxxx
  • Date: Mon, 17 Apr 2006 10:01:32 -0700 (PDT)

Hi All,
I have a question about calibrating a VNA for 4-port measurements.  We are 
using standard pico probes and Agilent 87xxX VNA.  The problems we are having 
is that one pair of probes now have different pitch than the other pair and it 
is not possible to use the same calibration substrate for both the pairs.  Does 
anyone know a way to calibrate this kind of setup with two different 
calibration substrates?
thanks in advance,
Virendra

                
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