Cancellation techniques for LO leakage and Dc offset in direct conversion systems

This paper presents LO leakage and dc offset cancelling techniques for direct conversion systems. Dc offset at the mixer output, partially due to LO leakage, degrades system sensitivity by inducing Flicker noise, while LO leakage on the antenna side may cause additional interference. To reduce these problems, LO leakage and dc offset cancelling techniques… CONTINUE READING