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)


	

			

		

						

				

				

                

			

			
						

		

		






Formula





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.