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Issue in testing phase shifters

Question asked by tandmguy on May 27, 2015
Latest reply on May 29, 2015 by Dr_joel
While testing a phase shifter with PNA N5230A, at a particular phase shift  (90 degree) DUT is showing *high insertion loss (about 35 db)*. In all the other phase shifts it is working as normal (10 db loss). I checked this in another PNA and loss is 10db in all phase shifts..
DUT is checked at 17Ghz frequency.
What would be the reason for this..Equipment is working fine and passed operators check.

Edited by: tandmguy on May 27, 2015 12:23 PM  

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