AnsweredAssumed Answered

Validity of Calibration

Question asked by jaz on Feb 20, 2011
Latest reply on Feb 23, 2011 by jaz

My calibration is one port calibration and is done using Electronic Calibration. Upon completion, cable is leaved open(unterminated) to verify the quality of calibration. Data of Mag(log) show flat zero db across the frequency but the phase data shows degradation from phase (zero deg at 10MHz) to -134 deg at 2GHz. Why the data regarding phase is not flat across the frequency too? Is a correct calibration should shows both frequency and phase data zero db and zero degree across frequency?

I really hope somebody can advice me on this. Thank you in advance.