QuickFil is a powerful freeware filter design software. Passive filters up to the 50th order can be calculated. In this application note it is shown how to design a passive bandpass filter with given centre frequency, passband bandwidth, passband loss and filter degree. QuickFil calculates the passive design and enables optimization of the circuit. The final circuit properties can be calculated using the circuit analysis feature of QuickFil.
Furthermore the characteristics of the bandpass filter are measured using the Bode 100. If you are interested in the capabilities of QuickFil and the filter analysis with the Bode 100 please feel free to download the following document: