Experimental Validation of Ray-Tracing and Physical-Optics Model for Geodesic H-Plane Horn Antennas

In this contribution, we provide an experimental validation of a ray-tracing and physical-optics model for geodesic horn antennas. The proposed model employs a ray-tracing technique to obtain electric fields in the horn aperture and applies the field equivalence principle in physical optics to evaluate the three-dimensional radiation characteristics of the geodesic horn antennas. The numerical results agree well with the measurements in terms of radiation patterns in the uv-plane, the principal E- and H-plane patterns, and directivities.