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Hello , I am measuring two differential lines one is 3 inch the other is 6 inch over a span of 70 GHz.
one differential line shows 92% percent causality CQMi while the other is 66% CQMicausality.The PNA is well calibrated.
why is that ? causality means the quality of the s-params is not good .
Why one trace give good quality s-params while the other in not?
Thanks.
one differential line shows 92% percent causality CQMi while the other is 66% CQMicausality.The PNA is well calibrated.
why is that ? causality means the quality of the s-params is not good .
Why one trace give good quality s-params while the other in not?
Thanks.
