Muller, Andrei A.; Soto Pacheco, Pablo; Dascalu, Dan; Neculoiu, Dan; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2011-06)
This letter proposes a spherical 3-D Smith Chart suitable for representing both active and passive microwave circuits. Using the mathematical concept of the Riemann sphere, the extended reflection coefficient plane is ...
Belenguer Martínez, Ángel; Esteban González, Héctor; Díaz Caballero, Elena; Bachiller Martin, Maria Carmen; Cascón López, Joaquín; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2011-03)
In this paper, we adapt a novel mode-matching and method-of-moments hybrid technique to efficiently analyze substrate integrated waveguide (SIW) based devices. The hybrid technique is formulated in terms of a single ...
Cogollos, Santiago; Vague Cardona, José Joaquín; Boria Esbert, Vicente Enrique; Martínez Pérez, Jorge Daniel(Institute of Electrical and Electronics Engineers, 2018)
[EN] For the practical implementation of RF and microwave impedance matching networks, a widely employed solution¿alternative to the use of classical impedance transformers¿is based on tapered lines. This paper shows a ...
Melgarejo-Lermas, Juan Carlos; Ossorio-García, Javier; Cogollos, Santiago; GUGLIELMI, MARCO; Boria Esbert, Vicente Enrique; Bandler, John W.(Institute of Electrical and Electronics Engineers, 2019-12)
[EN] Space mapping (SM) and aggressive SM (ASM) techniques are widely used in the synthesis and design of microwave filters. Their popularity stems from the inherent simplicity of the procedures and from their effectiveness. ...