Nvidia Jetson AGX Xavier Series

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
TH
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
0.67πW 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