Microwave Resonators

This course covers the comprehensive study of Microwave Resonators, Transmission Line Resonators, and Waveguide Resonators. It begins with an introduction to series and parallel resonant circuits, exploring the Q-factor, bandwidth, and resonance conditions. For instance, learners will understand how the Q-factor affects the bandwidth of a circuit. The course then delves into Transmission Line Resonators, discussing the impact of line length, attenuation constant, and propagation constant on resonance. A practical example would be the resonance conditions in half-wavelength and quarter-wavelength short-circuited transmission lines. Lastly, the course explores Waveguide Resonators, explaining how they store electrical and magnetic energy and their application in frequency meters. The course concludes with a detailed study of the resonant frequencies for TE mn or TM mn mode and the Q factor for cylindrical cavities.

This course has been developed by Dr. Ratnajit Bhattacharjee from IIT Guwahati 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/108103141.