Homodyne Receivers: Design and Challenges

This lecture covers the design and challenges of homodyne receivers, focusing on DC offset, channel selection, and offset cancellation. It explains the principles of homodyne receivers, including direct conversion and zero-IF receivers. The lecture also discusses the impact of DC offset cancellation, even-order distortion, flicker noise, LO leakage, and I/Q mismatch. Additionally, it explores image-reject receivers, the Hartley architecture, and the Weaver architecture for image rejection. The lecture concludes with insights into low-IF receivers, complex signal processing, and bandpass sampling in discrete-time receivers.