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PCB Channel S parameter extraction

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hioyo

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Dear Team,

This question was asked in an interview. The Question is given below.

"After the extraction of S-parameter, if we haven’t achieved the result then what are parameters are to be considered first and what are the changes we will do first to get proper S parameters ".

Does this relate to S parameter passivity and causality

Regards
HAr
 

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vfone

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What means: "haven’t achieved the result" and "proper S-parameters"?
After extraction, the S-parameters didn't exist at all, or they look bad? How do you know if the "bad" S-parameters are not actually "good"?
 
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vfone said:
What means: "haven’t achieved the result" and "proper S-parameters"?
After extraction, the S-parameters didn't exist at all, or they look bad? How do you know if the "bad" S-parameters are not actually "good"?
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I think bad in the sense here it is passive and casual
 

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