EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true:...
Transcript of EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true:...
![Page 1: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/1.jpg)
EE205 Two-Ports Networks
Properties and Analysis
Dr. Ali Muqaibel
Dr. Ali Muqaibel
![Page 2: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/2.jpg)
Reciprocal Two-Port Circuits
• A two-port circuit is reciprocal if the interchange of an ideal voltage source at one port with an ideal ammeter at the other port produces the same ammeter reading.
I=1.75 A
Dr. Ali Muqaibel
![Page 3: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/3.jpg)
Cont… Reciprocal Networks
• A two-port circuit is also reciprocal if the interchange of an ideal current source at one port with an ideal voltmeter at the other port produces the same voltmeter reading.
• Only three calculations or measurements can be made to determine the parameters.
• For a reciprocal network, the following is true:z12=z21
y12=y21
∆a=1∆b=1h12=-h21
g12=-g21
Dr. Ali Muqaibel
![Page 4: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/4.jpg)
Symmetric Networks
• A reciprocal two-port circuit is symmetric if its ports can be interchanged without disturbing the values of the terminal currents and voltages.
• For symmetric networks, the following additional features are true:z11=z22
y11=y22
a11=a22
b11=b22
∆h=1∆g=1
• Only two measurements or calculations are required.
Dr. Ali Muqaibel
![Page 5: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/5.jpg)
Symmetric two port networks: (a) Tee (b) pi (c) bridged tee (d) lattice
Dr. Ali Muqaibel
![Page 6: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/6.jpg)
Dr. Ali Muqaibel
![Page 7: EE205 Two-Ports Networks - KFUPM...parameters. • For a reciprocal network, the following is true: z 12 = z 21 y 12 = y 21 ∆ a =1 ∆ b =1 h 12 =-h 21 g 12 =-g 21 Dr. Ali Muqaibel](https://reader034.fdocuments.in/reader034/viewer/2022050400/5f7e53b5ec15880968775459/html5/thumbnails/7.jpg)
Dr. Ali Muqaibel