Filter calculator.
WinRFCalc offers a large variety of filter calculators. Overview:
- Butterworth [Low pass, High pass, Band pass, Band stop]
- Chebyshev [Low pass, High pass, Band pass, Band stop]
- L-Matching filters for load matching from high to low Z and low to high Z
- Interdigital narrow band pass filters
Picture source pe1rki
After a click on Filters Selector on the main panel, you get the sub-menu below. From here you can select on of the four filter topologies.
When you click from here the B you get the Butterworth designs
C for the Chebyshev designs
and the Interdigital Filter design or the L-match filters.