Gregtlse
Newbie level 4
mixed mode scc21
Hello I have a little problem concerning the measurement of differential S parameters for a differential amplifier.
I have to measure the conversions between differential mode and common mode using the mixed mode S parameters concepts (Eisenstadt).
Therefore I designed a differential pair and I used baluns in order to access to Sdd, Sdc, Scd and Scc. But I'm not sure what I'm measuring exactly and I need some help.
The baluns used:
https://obrazki.elektroda.pl/91_1180625563.jpg
When I measure S21 and S43, does it correspond to Sdd21 and Scc21? I'm nearly sure it is Sdd21 and Scc 21 but I don't manage to find the signification of the others.
In the list of the S parameters I have S11 S12... S14, S21...S24, ... S44.
Thanks for your response and for your help.
Hello I have a little problem concerning the measurement of differential S parameters for a differential amplifier.
I have to measure the conversions between differential mode and common mode using the mixed mode S parameters concepts (Eisenstadt).
Therefore I designed a differential pair and I used baluns in order to access to Sdd, Sdc, Scd and Scc. But I'm not sure what I'm measuring exactly and I need some help.
The baluns used:
https://obrazki.elektroda.pl/91_1180625563.jpg
When I measure S21 and S43, does it correspond to Sdd21 and Scc21? I'm nearly sure it is Sdd21 and Scc 21 but I don't manage to find the signification of the others.
In the list of the S parameters I have S11 S12... S14, S21...S24, ... S44.
Thanks for your response and for your help.