FIELD: radio engineering and communication.
SUBSTANCE: filter contains input (1) of the device connected to signal source (2), first (3) and second (4) outputs of the device, output operational amplifier (5), first (7) capacitor, first (8), second (9) and third (10) resistors connected in series, common node of first (8) and second (9) resistors connected to second output (4) of the device through second capacitor (11), common bus of the power source (12), third capacitor (13), fourth resistor (14), additional capacitor (15), and additional inverting amplifier (16).
EFFECT: providing an extended frequency range and high attenuation of the frequency response beyond its limits in a fourth-order bandpass filter with a non-differential input and a paraphase output on classical operational amplifiers.
1 cl, 3 dwg
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