Circuit arrangement for a broadband mixer with predistortion and high linearity

摘要

Circuit arrangement for a broadband mixer (1, 101, 201) with a multiplicative mixer stage (2), comprising a carrier frequency input (3, 4) for injecting a differential carrier frequency signal (lop, lon), a mixing stages input (5, 6) for injecting a predistorted differential input signal (lfpd, lfnd) and an output (9, 10) for coupling out of a differential output signal (outp and outn) which, by a multiplicative mixture of the differential carrier frequency signal (lop, lon) and the predistorted differential input signal (lfpd, lfnd) is generated, wherein the predistorted differential input signal (lfpd, lfnd) from a differential input signal (lfp, lfn) by a square predistortion is produced and a linear predistortion.