VSWR Calculator
Calculate VSWR, return loss, reflected power, and mismatch loss from the reflection coefficient.
1
Inputs
Live
Math
3
Related
Enter parameters and click Calculate to view results
Formula & Theory
VSWR = (1 + |Γ|) / (1 - |Γ|)This formula is used to calculate antenna parameters for vswr calculator.
Overview
VSWR Calculator supports basic antenna parameters planning with a practical calculation based on the displayed inputs.
Input Guide
Enter Reflection Coefficient |Γ| exactly in the units shown by this vswr. Check the operating band, unit prefix, and decimal position before calculating; these are the inputs used by the formula.
- Reflection Coefficient |Γ|.
Output Guide
The results describe the calculated vswr values for the inputs you entered. Check each value against the available space, selected components, feed system, and operating conditions before making a final design decision.
How This Calculator Works
The VSWR uses VSWR = (1 + |Γ|) / (1 - |Γ|). Supply Reflection Coefficient |Γ| in the displayed units, then use the calculated values as the first engineering target for this basic antenna parameters design or analysis.
Design Notes
Installed performance can vary with frequency, losses, tolerances, environment, and system configuration.
Build and Tuning Notes
Use the result as a starting point, then validate the completed system with measurement or simulation.
Frequently Asked Questions
What does the VSWR Calculator calculate?
It calculates the applicable design or performance value from the inputs shown.
How should I use the result?
Confirm units and operating conditions before applying it to the system design.
Why can results differ in practice?
Physical installation, materials, losses, and measurement conditions affect real-world performance.
Alex Warren
B.Sc. in Electrical & Electronic Engineering (EEE)
Alex specialises in antenna design and wave propagation. His expertise helps ensure these calculators present practical RF concepts, useful design estimates, and clear engineering guidance for students, HAM operators, and wireless professionals.