A Slotted Waveguide Antenna Array for High-power Microwave Applications

A slotted waveguide antenna array (SWAA) has been optimized for high power microwave (HPM) applications in the L-band. Through the use of global optimization, the dimensions of the feed layer and radiating slots were fine-tuned to minimize S11 and electric field enhancement, while maintaining high directivity. The radiating slots are encapsulated in dielectric, minimizing the electric field magnitude in air, while allowing the SWAA to be pressurized to further improve power handling capability.