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Bandpass Filter Designer

When designing Bandpass Filters, it is sometimes more convenient to have a Lowpass / Highpass combination instead of a 'true Bandpass'.

This tool let's you decide, when to use which approach. The decision is derived from
the relative Bandwidth.

Lower Corner Freq. [F1]		Hz kHz MHz
Upper Corner Freq. [F2]		Hz kHz MHz
Center Freq.		Hz
Bandwidth		Hz
Relative Bandwidth		%

NOTE:

• If the rel. Bandwidth is less then ~ 90 % it is wise to use a true Bandbass.
• If the rel. Bandwidth is larger than ~ 90 % it is wise to use a Highpass + Lowpass.

• If the rel. Bandwidth is 90% you have a problem :-) just kidding - choose by yourself.


Information based on 'Das AKTIV-FILTER Kochbuch',
by Don Lancaster, ISBN 3-88322-007-8

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