Advanced ferrite materials for next generation high power microwave generation systems

Microwave oscillators based on ferrimagnetic precession and excited with a fast-rise time pulsed input have been proposed to achieve high power microwave (HPM) generation. The properties of ferrite materials utilized in such systems impose limitations on performance, including peak power capability, internal heating, and maximum repetition rate. In order to improve the efficiency of HPM generation, the development of novel materials with properties optimized specifically for this application is pursued. Key materials properties were identified during the Phase I effort, in which a rigorous commercially available materials characterization program was executed. These findings formed a solid foundation for a follow-on Phase II program, in which specialized ferrite materials will be developed for HPM generation applications. The properties of the materials will first be optimized on a research scale, followed by the development of manufacturing processes to allow for mass production necessary for technology transition and commercialization. The newly developed materials will be used to fabricate ferrite core prototypes for HPM generators and thoroughly validated in a representative environment. The capability to produce prototype components in a production relevant environment will also be demonstrated.