Filter calculator.
WinRFCalc offers a large variety of filter calculators.
Overview:
- Butterworth [Calculators for Low pass, High pass, Band pass and Band stop filters]
- Chebyshev [Calculators for Low pass, High pass, Band pass and Band stop filters]
- L-Matching filter calculator for load matching from high to low Z and low to high Z
- Interdigital narrowband pass filter calculator
- Narrowband 3dB Hybrid Coupler calculator
Picture source PE1RKI
After a click on Filters Selector on the main panel, you get the sub-menu below. From here, you can select one of the four filter topologies or the lumped element Hybrid Coupler calculator.
Click B for the Butterworth designs
Click C for the Chebyshev designs
and click on
for the Interdigital Filter calculator
for the L-match filter calculator
for the 3dB Hybrid Coupler calculator