IMPROVEMENTS IN OR RELATING TO RF RECEIVERS

摘要

Apparatus for compensating for non-linear behaviour of a mixer device (in a direct-conversion receiver artchitecture), the apparatus comprising; a first multiplier for squaring an input RF signal; a scaling multiplier, for multiplying the square input signal by a scaling coefficient, K2, and an adder, for adding the scaled, squared signal as a further signal; wherein the apparatus is couple to the mixer device and wherein said coefficients K2, are arranged to compensate for the non-linear behaviour of said mixer device.