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Passive Filters : Band Pass

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Bandpass Filter
Band-pass filters
Components of a simple bandpass filter
Notch Filter Is DC Accurate:  Maxim Application Notes / #138
Basic Introduction to Filters: Active, Passive & Switched-Capacitor - National Semiconductor Application Note

Regarding Tapped Capacitor Impedance Transformation in LC Bandpass Filters:  We often use a pair of capacitors to match impedances at the termination ends of LC bandpass filters.  The circuit consists of a shunt capacitor at the termination followed by a series capacitor connecting to the high Z end of a parallel tuned circuit.

Wideband Filter Only Has Two Different Components:  01/21/02 Electronic Design - Ideas for Design / Wideband filters with bandwidths in excess of an octave can be created by cascading a high-pass filter and a low-pass filter. In this design idea, nine-pole high-pass and low-pass filters have been constructed using a modified equal-element design. A. . .
Wideband Filter uses image Parameters:  10/26/00 EDN-Design Ideas / PDF contains multiple circuits - scroll to find this circuit
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