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Lecture 5:
Transmission AC Model 2
Objective: Analysis of Tx Line Parallel
connected circuits
Hayt 6
th
ed. CH. 13, CH. 11 7
th
ed.
1
McGill ECSE 352 Fall 2011 D. Davis
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View Full Document arallel
onnections
Parallel Connections
•
hen a transmission line is series connected
When a transmission line is series connected
to another transmission line, the discontinuity
hat we have been calling the load
(what we have been calling the load
impedance) will be characterized by the input
pedance at the junction of the lines
impedance at the junction of the lines.
•
This will be illustrated in the following slides
McGill ECSE 352 Fall 2011 D. Davis
2
arallel
onnected Circuit
Parallel Connected Circuit
•
Figure 1: Two transmission lines in Parallel. The
first line is series connected to the source and
terminated by the junction of the two
transmission lines. Each parallel line is terminated
y a load
by a load.
McGill ECSE 352 Fall 2011 D. Davis
3
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View Full Document arallel
onnected Circuit
Parallel Connected Circuit
•
ch of the parallel lines can be replaced by
Each of the parallel lines can be replaced by
the input impedance (equivalent impedance).
sing the relationship:
Z
L
jZ
C
tanሺβLሻ
•
Using the relationship:
•
We can replace the line and load with Zin.
ܼ
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This note was uploaded on 12/03/2011 for the course ECSE 352 taught by Professor Mi during the Fall '10 term at McGill.
 Fall '10
 mi

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