I have been reading the "Agilent De-embedding and Embedding S-Parameter Networks Using a Vector Network Analyzer" Application Note 1364-1

I am trying to incorporate the test fixture S-parameter model into the calibration error terms in the vector network analyzer so that I can see

the real time deembedding response of my DUT with the test fixture deembedded. However, I am confused because my 12 error calibration terms

are one set that are not frequency dependent. However, my s parameter files for my test fixture have s parameter sets across frequency.

The app note suggests that I apply a formula based off of the calibration error terms and the test fixture s-parameters.

My question is: How can I deembed the s-parameters of my text fixture using the 12 term calibration error term when my text fixture has has many s-parameter across frequency

when my 12 term calibration error terms are not frequency specific?

Or am I totally not understanding what is going on......Please help. Also, please let me know if I can clarify my question any more.

I am trying to incorporate the test fixture S-parameter model into the calibration error terms in the vector network analyzer so that I can see

the real time deembedding response of my DUT with the test fixture deembedded. However, I am confused because my 12 error calibration terms

are one set that are not frequency dependent. However, my s parameter files for my test fixture have s parameter sets across frequency.

The app note suggests that I apply a formula based off of the calibration error terms and the test fixture s-parameters.

My question is: How can I deembed the s-parameters of my text fixture using the 12 term calibration error term when my text fixture has has many s-parameter across frequency

when my 12 term calibration error terms are not frequency specific?

Or am I totally not understanding what is going on......Please help. Also, please let me know if I can clarify my question any more.

I would be suprised if you error terms are not frequency dependent. If you are using any of the internal firmware calibration techniques, then there is a set of error terms (12) at each frequency. When you retrieve any of the error terms you will get an array with a one-to-one correspondance to the x-axis.