FIELD: physics.
SUBSTANCE: invention relates to amplifier circuits for compensation of output signal. Amplifier circuit (200) comprises output transmission line (230) connected between output (212) of said circuit (210) and output port (240) and amplifier (220). Amplifier (220) comprises multiple sub-amplifiers (221, 222, 223, 224), wherein inputs of multiple sub-amplifiers (221, 222, 223, 224) are connected to input transmission line (250) to receive a mismatch signal, and outputs of multiple sub-amplifiers (221, 222, 223, 224) are connected to corresponding places along output transmission line (230) for supply of compensating signal to output port (240). Mismatch signal is obtained from the reference input signal and the output signal of said circuit (210) and amplified in amplifier (220) to obtain a compensating signal.
EFFECT: wider range of equipment.
14 cl, 11 dwg
