Patent ID: 8085877

Claim:
A method for processing signals, the method comprising: generating by a direct digital frequency synthesizer, a first signal based on a base signal; generating by a phase shifter a second signal based on said base signal; quadrature mixing in-phase (I) and quadrature phase (Q) components of said first signal and in-phase (I) and quadrature phase (Q) components of said second signal to generate a local oscillator signal comprising an in-phase (I) component and a quadrature phase (Q) component; mixing said I component of said first signal and said Q component of said second signal to generate a third signal; mixing said I component of said second signal and said Q component of said first signal to generate a fourth signal; mixing said I component of said first signal and said I component of said second signal to generate a fifth signal; mixing said Q component of said first signal and said Q component of said second signal to generate a sixth signal; adding said third signal and said fourth signal to generate said in-phase component of said local oscillator signal; and adding said fifth signal and said sixth signal to generate said quadrature phase component of said local oscillator signal.