Return Loss to VSWR Formula
The Return Loss conversion calculator uses the reflection coefficient (Γ) to determine the Voltage Standing Wave Ratio (VSWR).
Γ = 10^(-RL / 20)
VSWR = (1 + Γ) / (1 – Γ)
Formula Explanation
The reflection coefficient Γ represents the portion of power reflected by a load due to impedance mismatch. The VSWR provides a measure of how efficiently power is transmitted from a source to a load. Using the Return Loss value in dB, the calculator first computes Γ and then derives the VSWR, giving insight into transmission line performance.
Uses of Return Loss conversion calculator
- Evaluating transmission line matching for antennas and RF circuits.
- Ensuring minimal signal reflection in RF system design.
- Analyzing VSWR to optimize power delivery and reduce losses.
- Assisting engineers in designing and testing RF components efficiently.
Formula Example
Given a return loss RL = 20 dB:
Γ = 10^(-20 / 20) = 0.1
VSWR = (1 + 0.1) / (1 – 0.1) = 1.222
This indicates the transmission line has a low mismatch and good power transfer efficiency.