Inverse Transmission Parameters (A’B’C’D’ – Parameters):

The A’B’C’D’ parameters represent the inverse relation between the input quantities and the output quantities in the two-port network. They are also voltage-current pairs.

Here also, the output current is marked as going out rather than as coming into the port. The inverse transmission parameters matrix may be written as

A’ and C’ can be calculated by open circuit port-1

B’ and D’ can be calculated by short circuit port-1

In this matrix equation, it is easily seen without even expanding the individual equations, that


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