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jian said:Hi, Wlcsp: What do you mean "de-embed the vias in microstrip lines"? Please explain a little bit detail on what you want to achieve. Regards.
jian said:Hi, wlcsp:
The way I described in MODUA of IE3D accessory is not only for simulations. It is also good for any s-parameters including measured data. However, I understand that you may not be able to find the s-parameters without connectors because they are what you are after.
From what I see, if your A_left_via and A_right_via is completely symmetrical and identical, you should be able to find A_left_via from A_thru. After you find A_left_via (and A_right_via), you should be able to find A_microstrip from A_measured and A_left_via. The 2nd procedure is implemented into MODUA. For the 1st one, I had some something on it. However, it is not in our released software. We can consider releasing it on MODUA. Regards.
jian said:Hi, wlcsp:
There are two conditions there:
1. A_left and A_right are symmetrical
2. A_left and A_right are identical.
If any of the 2 conditions is not met, you will not have a unique solution mathematically. From the A_measured and A_thru, you will not be able to find the A_left and A_right and A_microstrip.
You mentioned the 1st scheme. Do you mean the scheme using EM simulation results? Free IE3D evaluation license is available on the web (www.zeland.com). Thanks!