SELECTIVE AMPLIFIER Russian patent published in 2013 - IPC H03F3/00 

FIELD: radio engineering, communications.

SUBSTANCE: selective amplifier comprises a source of input voltage, a voltage-current converter, an input transistor, a source of auxiliary voltage, the first current-stabilising dipole, the first bus of a supply source, the first and second resistors, the first correcting capacitor, the second bus of supply sources, the common bus of supply sources, the second correcting capacitor, a forward-biased p-n transition, the first additional transistor.

EFFECT: higher quality of selective amplifier amplitude-frequency characteristic and its amplification ratio by voltage at quasiresonance frequency f₀.

6 cl, 10 dwg