This calculator converts a given reflection coefficient (Γ) into return loss (RL) expressed in dB. It helps evaluate the amount of power reflected in an RF transmission line due to impedance mismatch, which helps analyze transmission efficiency and antenna quality.
Formula
RL = −20 × log 10 (Γ)
Explanation of the formula
Return loss represents the difference between incident power and reflected power. A low reflection coefficient indicates better impedance matching and therefore higher return loss. This logarithmic relationship shows that small variations in the reflection coefficient can result in large differences in the RL value.
Uses of the calculator
- Evaluate the performance of transmission lines and RF antennas.
- Optimizing impedance matching in wireless systems.
- Analyze losses due to reflections in microwave circuits.
- Practical tool for RF design and test engineers.