# Impedance mismatch and VSWR
# Scope: Real load impedance reflection against real reference; reactive part omitted.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

load = 75 ohm
reference = 50 ohm

reflection := (load-reference)/(load+reference)
returnLossDb := -20*log10(abs(reflection))
vswr := (1+abs(reflection))/(1-abs(reflection))

check VSWR budget: vswr <= 2

scenario alternative: load = 60 ohm