CHAPTER 2 - Conveying Power at Radio Frequency
54
Figure 2.5-20 Pulse travels back into generator and is absorbed
The reflected current flows through each shunt capacitor in the same direction as the
current that charged it as the incident wave progressed. However, from the point of view of the line,
incident and reflected currents travel in opposite directions. This is illustrated in Figure 2.5-21.
Figure 2.5-21 Direction of flow of incident and reflected currents through shunt capacitors in an open-circuited line
Important facts to remember in the reflection of dc voltages in open-ended lines are:
•
Voltage is reflected from an open end without change in polarity, amplitude, or shape.
•
Current is reflected from an open end with opposite polarity and without change in amplitude or
shape.
E
E/2
-I
E/2
INCIDENT
CURRENT
REFLECTED
CURRENT
Conquer Radio Frequency
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