Análisis de onda completa por el método de los momentos de estructuras microtiras eléctricamente grandes

[EN]In this paper we will present a comparison between numerical and asymptotic evaluation of Sommerfeld kind integrals when working with real microstrip problems. We have focused our atention in the time required for both methods. Asymptotic methods are less time consuming than numerical ones, but when you have to compare the time involved in the computation of the Green's function with the time required to fill the MoM matrix, the former is very little in front of the latter.