Electromagnetic simulation and experimental characterization of RF interaction structure of an S-band magnetically insulated line oscillator

Abstract

An S-band RF interaction structure of a magnetically insulated line oscillator operating at fundamental-mode was designed using analytical formulations, and simulated using 3-D electromagnetic code CST Microwave Studio for its dispersion characteristics and RF output performance. The slow-wave structure was fabricated using precision CNC machining and characterized for its dispersion characteristics. The measured value of pi-mode frequency was found to be in close agreement (2.6%) with that from the simulation.

Keywords:

• Dispersion relation
• coaxial disk-loaded waveguide
• magnetically insulated line oscillator (MILO)
• slow-wave structure

Acknowledgements

Authors are thankful to the Director, MTRDC for kind support to carry out the work and necessary permission to publish the work.