Transmission Line Theory Applied to Digital Systems
Microstrip Transmission Line Techniques Evaluated Using TDR Measurements
11-33
Figure 11-17B shows the reflection due to the construction of Figure 11-17A
where the two 100 Ω lines have been brought close together. The reflection at
point 2 is now equal to 8% because the two lines are cross coupled.
Figure 11-17
Hybrid Divider with Crosstalk Problem
Even mode or odd mode characteristic impedance (Z
o
e
or Z
o
o
) can be
considered to exist in a circuit with crosstalk. One, Z
o
e
, is due to the strips
being at the same potential and carrying equal currents in the same direction.