Patent ID: 7509110

Claim:
A transmitter, comprising: a first mixer to produce a first frequency translated output signal from an input signal using a first version of a local oscillator (LO) signal; a second mixer to produce a second frequency translated output signal from the input signal using a second version of the LO signal; a third mixer to produce a third frequency translated output signal from the input signal using a third version of the LO signal; a fourth mixer to produce a fourth frequency translated output signal from the input signal using a fourth version of the LO signal; and a fifth mixer to produce a fifth frequency translated output signal from the input signal using a fifth version of the LO signal; wherein third, fifth, seventh and ninth harmonics of the first, second, third, fourth and fifth frequency translated output signals are substantially cancelled by summing the first, second, third, fourth and fifth frequency translated output signals to produce an output signal.