calc.engineer / RF & Antennas / VSWR

VSWR v1.0.0

Convert between VSWR, return loss, and reflection coefficient — provide any one parameter and get all related impedance-mismatch metrics. Computes VSWR (voltage standing wave ratio), return loss in dB, reflection coefficient (gamma), mismatch loss, and percentage of power reflected vs transmitted. Essential for antenna matching, transmission line analysis, and RF system budgeting. Feeds into link_budget for system-level mismatch accounting.

feeds link_budget →
Voltage standing wave ratio (>= 1.0, where 1.0 is perfect match)
Return loss in decibels (positive value, higher is better match)
Reflection coefficient magnitude (gamma), 0 to 1
Fill in the inputs and Compute to see the structured result.

From an agent (MCP) or the API

curl -X POST https://calc.engineer/api/vswr \
  -H "Content-Type: application/json" \
  -d '{"vswr": …, "return_loss_db": …, "reflection_coefficient": …}'

MCP: connect to https://calc.engineer/mcp and call vswr.

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