CHAPTER 3 - Foundations of RF & Microwave Circuit Characterisation
128
Figure 3.2-4 Physical and electrical lengths for a line, =50Ω =100Ω
Figure 3.2-5 Reflection coefficient when transmission line's physical length , electrical length =90ι, =100Ω
We can also work out that the electrical length for a line is 45ι (Figure 3.2-6) and that,
over such a length, travels around the polar plot by 90ιሺFigure 3.2-7ሻǤ
Figure 3.2-6 Physical and electrical lengths for a line, =50Ω =100Ω
θൌͻͲι
0
15
30
45
60
75
90
105
120
135
150
165
-180
-165
-150
-135
-120
-105
-90
-75
-60
-45
-30
-15
Graph 1
Swp Max
1000 MHz
Swp Min
1000 MHz
Mag Max
1
0.2
Per Div
1000 MHz
Mag 0.3333
Ang -180 Deg
S(1,1)
Schematic 1
θൌͶͷι
Conquer Radio Frequency
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