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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
ELECTRIC CIRCUITS
Report (3)
Name: Sec.: B.N.:
Notes:
Answer all questions.
Insert your results in the requested tables and sketches.
Mark
Prof.Afaf Abdel Fattah
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[1]:a)Determine the O.C. Z-parameters for the network shown in figure and sketch its
Z-parameters equivalent circuits.
b)Calculate the Hybrid H-parameters of the same network and sketch its equivalent
circuit.Insert your results in Table 1 .
+
V1
_
R1
R2 R3
R4
I1 I2
+
_
V2
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
[Z]
Equivalent
Circuit(1) for
Z-parameters
Equivalent
Circuit(2) for
Z-parameters
[H]
Equivalent
Circuit for
H-parameters
Table 1
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[2]:Determine the S.C. Y-parameters for the network shown in figure and sketch the two forms
of its equivalent circuit.
Insert your results in Table 2 .
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
[Y]
Equivalent
Circuit (1) for
Y-parameters
Equivalent
Circuit (2) for
Y-parameters
Table 2
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[3]:For the Hybrid equivalent circuit shown in figure, calculate the current gain A iand the
voltage gain Av.
Insert your results in Table 3 .
+
_
V1
hi
1 K
+_
hrV2 hfI1
50 I1 40
K
+
I1 I2
_
V2RL
2 K
24
104 V
oh
1
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Ai
Av
Table 3
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[4]:For the Z-parameters equivalent circuit shown in figure, calculate the input and output
impedances.
Insert your results in Table 4.
Rs 1
K
I1
Vg
+
V1
_
+_
+_
Z12I2 Z21I1
Z11
1 K
Z222 K 4 K
+
V2
_
RL1 K
I2
23
90105 Io
1
31010 I
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Zin
Zout
Table 4
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[5]:The Hybrid H-parameters of a network are given by the following matrix:
mho
KH
20100
0002.01
Calculate the H-parameters of two of such network connected in:
a)Series.
b)Parallel.
Insert your results in Table 5.
___________________________
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
[H]
Series Connection
[H]Parallel Connection
Table 5
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[6]:Determine the transmission A-parameters for the network shown in figure and write its 2-
port equations in the A-form.
Insert your results in Table 6.
1
1 4 3
1
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
[A]
Transmission
Equations
Table 6
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[7]:For the 2-port network shown in figure, find the transmission A-parameters.
Insert your results in Table 7.
+
_
V1
I1
50
100
+_
20
0.025 V1
40
+
V2
_
I2
5 V2
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
[A]
Table 7
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[8]:Simplify the network shown in figure into two 2-port networks connected in parallel.
Hence, calculate the Y-parameters matrix of the whole network.
Insert your results in Table 8.
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Table 8
[Y]
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[9]:Using the Z-parameters, find Thevenins equivalent circuit with respect to port 2 for the
2-port network shown in figure.
Insert your results in Table 9.
Zg
Vg
+
_
+
V1_
I1 I2
+
V2_
ZL
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Vth
Zth
Equiv. Cct.
Table 9
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
Question[10]:The networks D and E in the circuit shown in figure are reciprocal and symmetrical
networks. D has a11=5 and a12=24 . The impedance ZL is adjusted for maximum
average power transfer. FindZLif Zg=5 .
Insert your results in Table 10.
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Cairo University Prof. Afaf Abdel-FattahFaculty of Engineering Circuits(2) ELC 202 ADepartment of Electronics & Electrical Communications Term (I)
ZL