| Narrow Bandwidth band pass filters are required
whenever the range is less than a decade.
The use of the narrow bandwidth band pass formulas are recommended
for ranges up to two decades in width. A decade is 10 times
the lower frequency of the range of a band pass. For instance,
200 to 2000 Hz isa decade. 200 time 10 is 2000. Two decades
would be 200 to 4000 Hz. (200 times 20) |
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| 1st Order (6dB per octave) |
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Inductor-L1: |
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Capacitor-C1: |
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| 2nd Order (12dB per octave) |
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Inductor-L1: |
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Capacitor-C1: |
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Inductor-L2: |
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Capcitor-C2: |
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| 3rd Order (18dB per octave) |
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Inductor-L1: |
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Capacitor-C1: |
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Inductor-L2: |
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Capacitor-C2: |
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Inductor-L3: |
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Capacitor-C3: |
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| All coils values are shown in Millihenries
and capacitor values are shown in Microfarads. |
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