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Band pass filters
· Filters that pass band of frequencies and attenuates others. Its high cutoff frequency and low cutoff frequency are related as fH >fL and maximum gain at resonant frequency
· fr= √ fHfL
· Figure of merit Q= fr/ (fH- fL) = fr/B where B= bandwidth.
· 2 types of filters are Narrow band pass and wide band pass filters
Wide band pass filter:
It is connection of a low pass filter and a high pass filter in cascade.
The fH of low pass filter and fL of high pass filter are related as fH > fL
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