Reflection Coefficient Calculator

This tool uses the impedance of the source and load to calculate the Reflection Coefficient (Γ) and Voltage Standing Wave Ratio (VSWR)


Source Impedance = Z0

Complex Load Impedance = R + j*X

Γ = √[(R-Z0)2 + X2] / √[(R+Z0)2 + X2]

VSWR = (1+Γ)/(1-Γ)

Example Calculations

For a source impedance of 50 ohm and load impedance of 100 ohm, the reflection coefficient Γ = 0.33. The VSWR is 2.

Neither Γ nor VSWR have units as they are ratios.