# Narrowband L-network matching
# Scope: Ideal low-pass L network matching low real source to high real load.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

source = 50 ohm
load = 100 ohm
frequency = 100000000 Hz

quality := sqrt(load/source-1)
seriesL := quality*source/(2*pi*frequency) [nH]
shuntC := quality/(load*2*pi*frequency) [pF]

check matching direction: load > source

scenario alternative: source = 40 ohm