Calculate component values for lowpass, highpass, and bandpass filters from precomputed normalized values (source: rfcafe).
This script may produce component values that are either too low or too high to be usable depending on the input requirements.
bessel.py accepts the following options:
-f Set the cutoff frequency (MHz)
-bw Set the bandwidth (MHz)
-t Set the type of filter. [HP, LP, BP]
-o Set the filter order
-r Set the port resistance