FIELD: radio engineering; electronics.
SUBSTANCE: invention relates to radio electronics and can be used as a phase-rotation filter. Active phase-shifting system is made in form of differential-bridge circuit, in which first arm is first multi-element impedor, and second arm is second multi-element impedor, connected by first terminals to potential input terminal, and second to corresponding input of operational amplifier, in which output is connected to output potential terminal, first multi-element impedor is made in the form of connected in series inductance coil and three impedors, each of which contains parallel connected inductance coil and capacitor, second multi-element impedor is made in the form of connected in series capacitor and three impedors, each of which contains connected inductance coil and capacitor.
EFFECT: wider range of equipment in the field of active systems.
1 cl, 3 dwg
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