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Homework Statement
Calculate the Characteristic Impedance (Z0) of the two port network?
Homework Equations
When port 2 opencircuit, I2 = 0
So, Z11 = V1 / I1
= 40(60) / 100 = 24 Ω
When I2 = 0, thus V2
V2 = 40 / 20+40 V1 = 0.666 V1
Z21 = V2 / I1
= 0.666 V1 / (V1 / 4020)
= 0.666 V1 / (V1/20) = 0.666 V1 : V1/20
= 0.666 V1 x 20/v1
= 0.666 V1 x 20 / V1
= 13.32 V1 / V1
= 13.32 Ω
Now, when I1 = 0, so:
Z22 = V2 / I2
= 40(60) / 100
= 2400 / 100
= 24 Ω
When port 2 open circuit, I1  0, so:
V1 = 40 / (20+40) V2
= 40 / 60 V2
= 0.666 V2
I2 = V2 / 24
Z12 = V1 / I2
= 0.666 V2 / (V2 / 24)
= 0.666 V2 : (V2 / 24)
= 0.666 V2 (24/ V2)
= 15.984 Ω
AM I CORRECT???
Can someone please help???
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