Innovative Advances in HPM: From Metamaterials to Buridan's Ass
Final rept. 15 Jul 2011-14 Jul 2014
NEW MEXICO UNIV ALBUQUERQUE DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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This report describes our research over the past three years to explore novel concepts in high power microwave HPM source physics. The metamaterials research proposed as part of this program focused on the use of a two-fold spiral corrugated Bragg reflector to both reflect the upstream propagating TM01 mode in an X-band backward-wave oscillator BWO and simultaneously convert it to a forward propagating Gaussian-like TE11 mode. We proposed to further explore a novel mode switching technique in a relativistic magnetron with diffraction output MDO driven by a transparent cathode. In earlier MAGIC simulations we had established that the qualitative picture of the dynamics of systems with two stable states separated by an unstable saddle point hence, Buridan s Ass is applicable to describe a new type of mode switching in an MDO. During the period of this grant our focus was redirected to support an EOARD-sponsored collaboration with a laboratory in Brazil. Finally, three supplemental funding actions took place on this grant. These are reported on as well.
- Electrical and Electronic Equipment
- Radiofrequency Wave Propagation