KiCad files for a simple HF filter bank.
There are 4 5-order Chebyshev bandpass filters for 0.5-2, 2-10, 10-28, 28-45MHz. Actual characteristics deviate slightly from target values.
A filter is selected with an analog demultiplexer/multiplexer TS3A5017PWR of which select inputs are drived with photo-isolators.