Method for attenuating spurious signals and receiver

摘要

The invention relates to a receiver and a method for attenuating spurious signals in a mixer (10) of a receiver, in which radio signals of a first frequency are mixed to a second frequency, said method comprising: balancing the mixing by adjusting bias voltages (3) and/or currents in transistors of the mixer circuit, adjusting the bias voltages (3) and/or currents based on tuning data that are obtained from measurements of the balance from the mixer output to obtain adjusted bias voltages (3) and/or currents, and automatically setting the adjusted bias voltages (3) and/or currents of the transistors of the mixer circuit when the operation of the mixer (10) is started.