Find the z parameters for the circuit in the figure Take R1

Find the z parameters for the circuit in the figure. Take R_1 = 4 ohm, R_2 = 4 ohm, and R_3 = 17 ohm. Find z_11. Express your answer with the appropriate units. z_21 = Find z_21. Express your answer with the appropriate units. z_21 = Find z_12. Express your answer with the appropriate units. z_12 = Find z_22. Express your answer with the appropriate units. z_22 =

Solution

According to two port network analysis

Z11=sum of input side resistors

=4+4

=8

Z21=Z12=resistance common to both input and output ports

=4

Z22=sum of output resistance

=4+17

=21