Waveguide-Lens Transitions for Terahertz Range

The possibility of applying a dielectric lens as a highly directional antenna in the terahertz range is investigated. Theoretical expressions have been obtained and analyzed that make it possible to compute the shape of the lens profile and the radiation pattern of the created lens antenna. The effectiveness of the proposed lens antenna in the specified range is shown, and the results of experimental studies of the created lens antenna are also presented.