Mesa Ledesma, Francisco LuisChen, MingzhengCastillo Tapia, PilarQuevedo Teruel, Óscar2024-01-182024-01-182023-12Mesa Ledesma, F.L., Chen, M., Castillo Tapia, P. y Quevedo Teruel, Ó. (2023). Physical Optics Applied to Parallel-Plate Lens Antennas. IEEE Open Journal of Antennas and Propagation. https://doi.org/10.1109/OJAP.2023.3347347.2637-6431https://hdl.handle.net/11441/153600The Physical Optics (PO) method is used to derive simplified expressions to compute the radiation electric fields of planar graded-index and geodesic lenses based on a parallel-plate waveguide (PPW) implementation. If the PO method is combined with ray-tracing (RT) techniques, the resulting RT-PO procedure is capable of computing radiation patterns and gain of the PPW-based lens antennas when their apertures have a general shape and the electric field is vertically polarized. The RT-PO method is validated by comparing it with the full-wave simulation results of the commercial software ANSYS HFSS for three application cases. The results show that the RT-PO approach is not only very efficient from a computational point of view but also accurate, thus being a very convenient analysis/design tool for this kind of antenna.application/pdf12 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/LensesAperture antennasElectric fieldsAntennasPhysical opticsOptical waveguidesRay tracinginfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1109/OJAP.2023.3347347