Noise in RF Systems

This course covers the comprehensive understanding of noise in RF (Radio Frequency) systems. It starts with the fundamentals of RF Transceiver design and the different types of noise such as thermal, flicker, plasma, quantum, popcorn, and avalanche noise. The course provides practical examples of how to calculate power gain, voltage gain, and convert these values into different units. It further delves into the impact of noise on electronic systems and strategies to manage it. The course also focuses on the concept of 'white noise', its frequency independence, and the trade-off between bandwidth and noise. It introduces the 'Y-Factor' method used to measure noise temperature and the concept of noise figure in RF systems. The course concludes with a detailed discussion on the noise calculation of diodes, BJT, and MOSFET, and the importance of designing a low noise amplifier. 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.