[EN] This paper presents a gap-waveguide-based compact
monopulse array antenna for millimeter-wave tracking applications at Ka-band (27.5 to 30.5 GHz). A low-loss
Magic-Tee is designed to be used in a monopulse comparator ...
Marini, Stephan(Universitat Politècnica de València, 2019-11-25)
[EN] The general goal of this thesis is the development of a basic tool for the analysis of passive microwave and millimetre-wave devices used in the new generation of communication systems. In particular, the work is ...
Coves, Angela; Marini, Stephan; Gimeno, Benito; Sánchez-Escuderos, Daniel; Rodriguez Perez, Ana Maria; Boria Esbert, Vicente Enrique(Institution of Engineering and Technology (IET), 2016-02-19)
Two types of narrow-band dielectric frequency-selective surfaces (DFSSs) have been designed at microwave frequencies. First, a DFSS showing total reflection has been analysed under guided-mode resonance conditions, based ...
Morales-Hernández, Aitor; Sánchez-Soriano, Miguel Á.; Marini, Stephan; Reglero Mangada, Marta Sofía; Esteve, Laura; Boria Esbert, Vicente Enrique; Guglielmi, Marco(Cambridge University Press, 2021-09)
[EN] This paper studies the corona discharge power thresholds in microstrip bandpass filters (BPFs) and, in particular, is focused on a solution based on lambda/2 cover-ended resonators to enhance their peak power handling ...
[EN] This work describes a new design strategy for
improving the power handling capability (PHC) of groove gap
waveguides (GGW). First, a theoretical analysis is carried out to
study the distribution of the quasi-TE10 mode ...
A technique for the accurate computation of the time domain electromagnetic fields radiated by a charged distribution traveling along an arbitrarily shaped waveguide region is presented. Based on the transformation (by ...
Coves Soler, Angela; Marini, Stephan; Gimeno Martinez, Benito; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2012-06)
A novel full-wave method for the modal characterization of dielectric electromagnetic band-gap structures under oblique plane wave excitation is presented, showing the dielectric lattice periodicity in both the longitudinal ...
Marini, Stephan; Mattes, Michael; Gimeno Martinez, Benito; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2011-11)
In this letter, a method for the improved consideration of propagation losses in metallic waveguide structures is presented. The method relies on the perturbation of the boundary conditions on the metallic walls of the ...
Morales-Hernández, Aitor; Sánchez-Soriano, Miguel Ángel; Ferrando-Rocher, Miguel; Marini, Stephan; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers, 2022)
[EN] This work focuses on the study of the corona discharge breakdown in groove gap waveguides (GGWs) and inductive bandpass filters (BPFs) based on this technology. With the main aim of improving the peak power handling ...
Morales-Hernández, Aitor; Sánchez-Soriano, Miguel Á.; Marini, Stephan; Boria Esbert, Vicente Enrique; Guglielmi, Marco(Institute of Electrical and Electronics Engineers, 2021-03)
[EN] This work describes a new strategy for improving the peak power handling capability (PPHC) of microstrip bandpass filters (BPFs) without any degradation in the electrical performance. For this purpose, a new resonator ...
[EN] The High Academic Achievement (ARA, by its acronym in Spanish) group began its course in the 2011/12 academic year to reinforce the potential of the most outstanding students since the beginning of their university ...
Pinheiro-Ortega, T.; Monge, J.; Marini, S.; Sanz, J.; Sorolla, E.; Mattes, M.; Vicente, C.; Gil, J.; Boria Esbert, Vicente Enrique; Gimeno, B.(Institute of Electrical and Electronics Engineers, 2010-04)
[EN] This letter describes an efficient algorithm to predict the RF gas breakdown power threshold in microwave devices with complex geometries. The two necessary calculations when investigating such a phenomenon have been ...
Morales-Hernández, Aitor; Sánchez-Soriano, Miguel Ángel; Ferrando-Rocher, Miguel; Taroncher Calduch, Mariam; Marini, Stephan; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers, 2022-07)
[EN] This letter studies the peak power handling capability (PPHC) in groove gap waveguide filters based on horizontally polarized resonators. Moreover, a modification of the resonant cavity is proposed, where the central ...
[EN] The dispersion diagram of infinite periodic structures is useful for the practical design of
waveguide filters. Starting from the dispersion diagram of a unit cell, it is possible to generate a finite
structure with ...
Ferrando-Rocher, Miguel; Marini, Stephan(International Association of Online Engineering, 2021)
[EN] An elevator pitch is a short summary used to quickly and simply define a process, product, service, organization, or event and its value proposition. The name comes from the idea that it should be possible to deliver ...
[EN] This paper presents recent advances in the areas of modeling, design, and fabrication of microwave filters for space applications. A fast and accurate hybrid analysis method, combining boundary integral resonant mode ...
The accurate consideration of propagation losses in arbitrarily shaped waveguide-based structures is studied in this paper. For such a purpose, a software tool based on the perturbation of the boundary conditions on the ...