Mixer Design in RF System

This course covers the intricate aspects of mixer design in radio frequency (RF) technology. It begins with an introduction to the role of mixers in RF transceiver design, focusing on the down-conversion of signals to the baseband. The course delves into the practical aspects of RF signals, their deviation from symmetry, and the challenges in realizing frequency shifting. It further explores the types of mixers, their parameters, and the importance of port-to-port isolation. The course also discusses the evolution of mixers from diode-based to FET-based designs, highlighting the advantages of each. It provides a detailed mathematical analysis of how these mixers work, including the use of trigonometry and S parameters. The course concludes with a discussion on the design and operation of mixers in RF transceivers, the concept of free body diagrams in physics, and the intricate aspects of mixer design and noise analysis in electronic circuits. This course has been developed by Prof. Darshak Bhatt from IIT Roorkee for NPTEL. It is now accessible through Ansys Innovation Space courtesy of the partnership between Ansys and NPTEL, under the CC BY-SA license. For more details, visit https://nptel.ac.in/courses/108107379.