Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Example 2.2 is also attached

Rs + Zo
t = 0
Rs
Zo
R1
z = 0
Figure 2.7 Lossless line with direct power source, and resistive source and load termi-
nations.
MGH/Rosenstark
Reflections on Transmission Lines
29
From this point on the analysis proceeds in a very straightforward
manner, as illustrated below.
Example 2.2 Consider the transmission line of figure 2.7. The source resis-
tance Rs has a value of Zo and the load resistance RL is an open circuit. When
the switch is closed, we find using voltage division that the first incident wave
is V = V/2. At time T this voltage wave arrives at the load and encounters a
reflection coefficient of unity so it is fully reflected. When the reflected voltage
arrives at the source, where the reflection coefficient is zero, there are no further
reflections.
We see that the voltage on the entire line is V/2 at time T. At time 2T it
takes on a value of V. There are no further reflections so the line is now in its
steady state.
expand button
Transcribed Image Text:Rs + Zo t = 0 Rs Zo R1 z = 0 Figure 2.7 Lossless line with direct power source, and resistive source and load termi- nations. MGH/Rosenstark Reflections on Transmission Lines 29 From this point on the analysis proceeds in a very straightforward manner, as illustrated below. Example 2.2 Consider the transmission line of figure 2.7. The source resis- tance Rs has a value of Zo and the load resistance RL is an open circuit. When the switch is closed, we find using voltage division that the first incident wave is V = V/2. At time T this voltage wave arrives at the load and encounters a reflection coefficient of unity so it is fully reflected. When the reflected voltage arrives at the source, where the reflection coefficient is zero, there are no further reflections. We see that the voltage on the entire line is V/2 at time T. At time 2T it takes on a value of V. There are no further reflections so the line is now in its steady state.
P2.5
Draw the voltage and current lattice-diagrams for example 2.2. From
l and z = l. Also draw
that, draw voltage and current waveforms at z =
voltage and current distributions for t = 3T/2.
expand button
Transcribed Image Text:P2.5 Draw the voltage and current lattice-diagrams for example 2.2. From l and z = l. Also draw that, draw voltage and current waveforms at z = voltage and current distributions for t = 3T/2.
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