Patent ID: 8660508

Claim:
An electronic device comprising: passive harmonic-rejection mixer with an input for receiving an input signal and an output for supplying a output signal, wherein: the mixer comprises multiple segments connected to the input of the mixer; each respective one of the segments comprises a respective gating module for gating the input signal, a respective amplifier for amplifing the signal from the respective gating module, and a respective weighting module for weighting the signal from the respective amplifier and for supplying a respective contribution to the output signal; the mixer further comprising a summing module for summing the contributions to the output signal and for supplying an output signal to the output of the mixer; and the electronic device further comprises a calibration circuitry for applying a reference signal to the input of the mixer, for receiving an output signal from the output of the mixer, and for modifying the weights of the weighting modules to make the output signal match an expected output signal.