Radar antenna array with parasitic elements excited by surface waves

摘要

The device includes a waveguide of an antenna block configured to propagate electromagnetic energy along the propagation direction. The antenna block includes a port located on the lower surface of the antenna block and an antenna array located on the upper surface of the antenna block. The antenna block further includes a set of waveguides in the antenna block configured to couple the antenna array to the port. Additionally, the antenna block includes at least one surface wave radiator, wherein the surface wave radiator is located on the upper surface of the antenna block.