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.

 Windows RF Calculator