COMPENSATION CIRCUIT FOR A MIXER STAGE

摘要

The invention relates to a compensation circuit (100) for a mixer stage (200), wherein the mixer stage (200) comprises an input stage (210) provided with an input signal for mixing and a switching stage (220) downstream of the input stage (210), for mixing a differential input signal, obtained as a function of the input signal, with an oscillator signal, wherein the compensation circuit (100) may be connected at the input (100a) thereof to an input signal connector on the input stage (210) and at the output (100b) thereof to an input signal connector (220a) on the switching stage (220) to which the differential input signal obtained from the input stage (210) is applied and wherein the compensation circuit (100) can provide a compensation signal at the output thereof, obtained from a compensation stage (110) in the compensation circuit (100), in particular, for compensating intermodulation products. According to the invention, the compensation circuit (100) comprises a compensation input stage (12 0) with means (125) for influencing an amplitude and/or phase of the input signal, by means of which the compensation stage (110) may be supplied with a modified input signal.