A frequency translation apparatus provides selective frequency translation
of an input signal with reduced distortion effects. The frequency
translation apparatus includes a plurality of mixers. Each mixer is
coupled to the input signal and to a corresponding local oscillator (LO)
signal. The frequency translation apparatus further includes a plurality
of bias networks corresponding to the plurality of mixers. Each bias
network produces a bias voltage for a corresponding mixer. A mixer is
deactivated by providing an LO input of a mixer to a corresponding bias
voltage. A mixer is activated by not providing the LO input of the mixer
to the corresponding bias voltage. An activated mixer subsequently
frequency translates the input signal according to the corresponding LO
signal to produce a corresponding output signal.