Transmission Line Primer
Jetson AGX Xavier Series Product
DG-09840-001_v2.5 | 132
21.2
Physical Transmission Line Types
The two primary transmission line types often used for Jetson AGX Xavier board designs are:
Microstrip transmission line (Figure 21-2)
Stripline transmission line (Figure 21-3)
The following sections describe each type of transmission.
21.2.1
Microstrip Transmission Line
Figure 21-2 describes the microstrip transmission line.
Figure 21-2. Microstrip Transmission Line
Dielectric
W
T
H
Z
0
=
ln
87
Er + 1.414
5.98H
0.8W + T
•
Z0: Impedance
•
W: Trace width (inches)
•
T: Trace thickness (inches)
•
Er: Dielectric constant of substrate
•
H: Distance between signal and reference plane
21.2.2
Stripline Transmission Line
Figure 21-3 describes the microstrip transmission line.
Figure 21-3. Stripline Transmission Line
W
T
B
Z
0
=
ln
60
Er
4H
0.67
π
W 0.8 +
H
T
W
•
Z0: Impedance
•
W: Trace width (inches)
•
T: Trace thickness (inches)
•
Er: Dielectric constant of substrate
•
H: Distance between signal and reference plane
