eldo_user

Working with S, Y, Z Parameters
Technical Background
Technical Background
A two port network is completely presented by its Z, Y, h or S matrix.
As an example, consider the impedance Z matrix:
It is clear that this matrix relates the currents and voltages at the terminals of a given block:
An equivalent presentation is:
In this case, we use the S matrix or scattering parameters. a 1 and b 1 present the normalized
incident and reflected waves at port 1. a 2 and b 2 present the corresponding waves at port 2.
There are direct relationships between a 1 , b 1 , a 2 , b 2 and the corresponding I 1 , V 1 , I 2 , V 2 .
In the case of a two port network, the I and V as a function of a and b is given by the following:
For the same case, a and b as a function of I and V is given by the following:
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Eldo® User's Manual, 15.3