Patent ID: 7103327

Claim:
A single side band transmitter comprises: current source modulation module operably coupled to modulated, in accordance with a modulation protocol, data to produce an in-phase current component and a quadrature current component; current mirror module operably coupled to mirror the in-phase current component to produce a mirrored in-phase current component and operably coupled to mirror the quadrature current component to produce a mirrored quadrature current component; first mixing module operably coupled to mix the mirrored in-phase current component with an in-phase component of a local oscillation to produce a first mixed signal; second mixing module operably coupled to mix the mirrored quadrature current component with a quadrature component of the local oscillation to produce a second mixed signal; summing module operably coupled to sum the first and second mixed signals to produce an up-converted signal; and power amplifier operably coupled to amplify the up-converted signal to produce a radio frequency signal.