Below is a sample text output page for band-stop filters. At the top of the presentation is a list showing the input specifications.
Listed first is the center frequency, then the stop bandwidth for band-stop filters respectively. Next would be the stop or attenuation bandwidth band-stop filters unless a manual entry was done for the order as in this case. The input and output termination resistances, the filter order and the geometric configuration finish the list.
Double check that all specifications are correct. The software used the data displayed in the first half of the output.
Below that is a sample output chart showing inductances in Henries and capacitances in Farads. Since band-stop filters use series resonant and parallel resonant branches,
each line represents the data for one of those branches. Be alert to whether the data pertains to a series resonant or to a parallel resonant branch.
In the case of a band-stop Tee - Series filter, the pair at X1A and X1B represent a parallel resonant circuit. If the choice were band-stop Pi - Shunt, then that same pair would be a series resonant circuit. See Help - Geometry in the main menu for sample diagrams.
Read the 'Geometry' section in the helps to see the exact location of each component.
Finally, please read the Caveat section in the main menu to get an idea of the inaccuracies in the computer's estimation for the order necessary to achieve the filter requirements for the band stop filter.
|Band-Stop Filter Specifications|
|Center Frequency||1000000 Hz|
|Pass Bandwidth||500000 Hz|
|In/Out Resistance||50 Ohms|
|Filter Geometry||Tee - Series|
|XnA||Inductor Henries||XnB||Capacitor Farads|