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 ...
Lucas Borja, Alejandro; Carbonell Olivares, Jorge; Martínez Pérez, Jorge Daniel; Boria Esbert, Vicente Enrique; Lippens, Didier(Institute of Electrical and Electronics Engineers (IEEE), 2011)
This letter presents a tunable bandwidth bandpass
filter based on varactor-loaded metamaterial coplanar waveguide
(CPW) lines. The CPW lines are based on series gaps and
split-ring resonators. The varactors are ...
Melgarejo, Juan Carlos; Cogollos, Santiago; Guglielmi, Marco; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers, 2020-07)
[EN] In this article, we describe a new family of multiband waveguide filters based on a folded topology. The folded topology allows to use the filters of different orders and the introduction of transmission zeros. The ...
Smacchia, Davide; Soto Pacheco, Pablo; Boria Esbert, Vicente Enrique; Raboso García-Baquero, David(Institute of Electrical and Electronics Engineers, 2021)
[EN] This paper provides a new theoretical model for the characterization of passive intermodulation behaviour when non-contributing carriers (i.e., carriers which do not directly affect the particular non-linear contribution ...
[EN] In this paper, embedded coaxial substrate integrated waveguide (CSIW) filters with innovative magnetic couplings are presented and studied. By creating the loading capacitance of a combline topology using inner layers ...
Cogollos Borras, Santiago; Brumos Vicente, María; Boria Esbert, Vicente Enrique; Vicente Quiles, Carlos Pascual; Gil Raga, Jordi; Gimeno Martinez, Benito; Guglielmi, Marco(Institute of Electrical and Electronics Engineers (IEEE), 2012-04)
In this paper, we propose a systematic procedure for the accurate design of classical dual-mode filters in circular waveguide technology. The design procedure is based on the previous synthesis of an intermediate distributed ...
An Agressive Space Mapping (ASM) strategy for efficiently and accurately designing passive filters in substrate integrated waveguide (SIW) technology is presented and successfully validated for the double post topology. ...
[EN] At higher frequencies, metal loss effects in passive waveguide components become more pronounced and hazardous. In this paper, we propose two integral equation techniques, based on the generalized admittance and ...
[EN] This paper provides the guidelines for the practical development of novel advanced test beds for passive intermodulation(PIM) measurements. The proposed test beds show high performance and are flexible, allowing for ...
Sirci, Stefano; Sánchez-Soriano, Miguel Ángel; Martínez Pérez, Jorge Daniel; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers, 2019-03-04)
[EN] The use of singlets, cascaded singlets and doublets in coaxial substrate integrated waveguide (SIW) technology is proposed in this paper, with the aim of implementing low-loss filters with very compact size and ...
Monerris Belda, Óscar(Universitat Politècnica de València, 2023-04-18)
[ES] En los últimos años han proliferado los nuevos sistemas de satélites, sobre todo las grandes constelaciones en las órbitas terrestres bajas. Casi todos los satélites transmiten señales digitales con diversas modulaciones ...
Smacchia, Davide(Universitat Politècnica de València, 2022-04-26)
[ES] Los satélites de telecomunicación operan en entornos multiportadora, bajo una demanda continua de mayores capacidades de transmisión. Esto ha originado un aumento en los niveles de potencia de RF, frecuencias de ...
Melgarejo Lermas, Juan Carlos(Universitat Politècnica de València, 2021-09-02)
[ES] El creciente número de dispositivos intercambiando datos ha empujado a las empresas del sector espacial a utilizar bandas de frecuencia cada vez más altas, como Ku, K y Ka, ya que permiten emplear canales de frecuencia ...
Bardisa Peña, María(Universitat Politècnica de València, 2017-02-21)
Este proyecto trata de analizar el comportamiento y la deriva de los sistemas de generación de señal de RF y microondas con el fin de conseguir una combinación coherente de los mismos en un híbrido.
Para ello, se ha ...
Ruiz Garnica, Jesús(Universitat Politècnica de València, 2015-01-12)
El presente trabajo final de máster surge ante la necesidad de conseguir un sistema automático de medida precisa de parámetros S en cámara climática. Para ello se ha planteado realizar un programa en Labview que controle ...
Quesada Pereira, Fernando Daniel; Vera Castejon, P.; Alvarez Melcon, Alejandro; Gimeno Martinez, Benito; Boria Esbert, Vicente Enrique(American Geophysical Union (AGU), 2011)
In this contribution a new and efficient integral equation formulation is presented for the analysis of arbitrarily shaped capacitive waveguide devices. The technique benefits from the symmetry of the structure in order ...
[EN] Numerical methods are widely used to analyze and design microwave components for communication applications.In the implementation of any numerical technique, however, there are always a set of parameters ...
[EN] This article describes different tunable structures
for typical waveguide combline filters. In this context, several
configurations using dielectric tuners have been studied for
resonators, inter-resonator couplings, ...
Gonzalez Iglesias, Daniel; Belloch Rodríguez, María Pilar; Monerris Belda, Óscar; Gimeno Martinez, Benito; Boria Esbert, Vicente Enrique; Raboso García-Baquero, David; Semenov, Vladimir E.(Institute of Electrical and Electronics Engineers (IEEE), 2013-08)
The main aim of this paper is the analysis of the multipactor effect within a coaxial waveguide structure excited by a phase-shift keying single-carrier digital modulated signal. To reach this aim, we developed in-house a ...
Gonzalez Iglesias, Daniel; Gomez, Alvaro; Gimeno Martinez, Benito; Fernández, o.; Vegas, A.; Casas, Fernando; Anza Hormigo, Sergio; Vicente Quiles, Carlos Pascual; Gil Raga, Jordi; Mata Sanz, Rafael; Montero, Isabel; Boria Esbert, Vicente Enrique; Raboso García-Baquero, David(Institute of Electrical and Electronics Engineers (IEEE), 2016-12)
In this paper, the multipactor RF breakdown in a parallel-plate waveguide partially filled with a ferrite slab magnetized normal to the metallic plates is studied. An external magnetic field is applied along the vertical ...