LINEARIZED AMPLIFIER Russian patent published in 1997 - IPC

FIELD: radio engineering. SUBSTANCE: device has two identical amplifier stages using common-gate or common-base, or common-grid noninverting circuit and connected in series through matching unit with definite gain factor; compensating-type distortion reducing mechanism uses two noninverting stages and ensures phase opposition of third-harmonic components in second-stage load; definite gain factor of matching unit equalizes amplifier of counter-phase components; gain factor of matching unit is chosen according to amplifier gain and distortion factors with respect to second and third harmonics of amplifier stage. EFFECT: reduced third-order nonlinear distortions in amplifiers, third harmonic of input signal, or third-order intermodulation noise. 3 dwg