Gonzalo García, RamónTurullols, PedroRío Bocio, Carlos delSorolla Ayza, Mario2017-05-222017-05-221997https://academica-e.unavarra.es/handle/2454/24349Trabajo presentado a la 22nd International Conference on Infrared and Millimeter Waves. Estados Unidos, 1997.In this paper, we present a study about the difference between Gaussian beam propagation and Huygens method to obtain the radiation pattern in the case of non-paraxial conditions. We fix a way to determine the error in the Gaussian beam propagation, in this way, we could know if the approximation is good enough. The computational results show that it is not possible to use the Gaussian propagation equation when we are working with Gaussian beams in non-paraxial conditions.2 p.application/pdfengGaussian beam propagationHuygens methodNon-paraxial conditionsinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess