BEGIN Electronics

VSWR, Return Loss & Reflection

VSWR Calculator

Convert between VSWR, reflection coefficient and return loss — enter whichever one you have.

From VSWR

Result

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From reflection coefficient

Result

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From return loss
dB

Result

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Formula: Γ = (VSWR − 1) / (VSWR + 1) · RL = −20 · log₁₀|Γ|

Mismatch loss is the share of forward power reflected back to the source: ML = −10 · log₁₀(1 − |Γ|²).