SELECTIVE AMPLIFIER Russian patent published in 2012 - IPC H03F3/00 

FIELD: radio engineering.

SUBSTANCE: in a selective amplifier, having two input transistors and two current mirrors, between the input of the device and the emitter of the input transistor there are series-connected additional resistors and balancing capacitors; the bases of the input transistors are connected to the output of the device; between the output of the device and the common power supply bus there is an additional resistor and a third balancing capacitor connected in parallel through alternating current.

EFFECT: reduced total power consumption of the selective amplifier.

3 cl, 10 dwg