HP 8712ES User Manual page 129

Figure 3-33 Interpreting the Smith Chart
d. The magnitude and phase of the reflection coefficient, Γ, can be
ES User's Guide
determined in the following two ways.
i. Reading the Smith chart as follows:
• ρ = |Γ| = the distance from the measurement point to the
center point on the chart. See
the Magnitude and Phase of the Reflection Coefficient."
• ∠ Γ = θ = the angle between the horizontal axis of the Smith
chart and a line from the center point to the measurement
point. See Figure
Measuring Impedance using the Smith Chart
Figure 3-34, "Determining
3-34.
Making Measurements
3-77