1. Two-Port Networks Equivalent Circuits
Chapter 19

2. 19.1 Introduction
A two-port Network is an electrical network with two separate ports for input and output.
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3. z Parameters z11 = Open-circuit input impedance
z12 = Open-circuit transfer impedance from port 1 to port 2
z21 = Open-circuit transfer impedance from port 2 to port 1
z22 = Open-circuit output impedance
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4. Equivalent Circuit For Reciprocal network only For general
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5. y parameters y11 = Short-circuit input admittance
y12 = Short-circuit transfer admittance from port 1 to port 2
y21 = Short-circuit transfer admittance from port 2 to port 1
y22 = Short-circuit output admittance
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6. Fig 19.13 For Reciprocal network only For general
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7. h parameters h11 = Short-circuit input impedance
h12 = Open-circuit reverse voltage gain
h21 = Short-circuit forward current gain
h22 = Open-circuit output admittance
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8. Fig 19.20
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9. 19.6 Relationships Between Parameters
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10. 19.7 Interconnection of Networks
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11. Example 19.12 Evaluate V2/V1 in the circuit in Fig. 19.42.
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12. Example 19.12
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13. Example 19.12
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14. Example 19.13 Find the y parameters of the two-port in Fig. 19.44.
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15. Example 19.14
Find the transmission parameters for the circuit in Fig
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