F
Francisco Medina
Researcher at University of Seville
Publications - 361
Citations - 16494
Francisco Medina is an academic researcher from University of Seville. The author has contributed to research in topics: Microstrip & Band-pass filter. The author has an hindex of 53, co-authored 341 publications receiving 14419 citations. Previous affiliations of Francisco Medina include ENSEEIHT & Arcam.
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Journal ArticleDOI
Analysis and experimental validation of a type of three-microstrip directional coupler
TL;DR: In this paper, the authors presented an efficient analysis of a semi reentrant microstrip coupler section, where three fundamental modes were considered in a general situation, since the even-odd mode theory is inaccurate in certain cases.
Proceedings ArticleDOI
Equivalent circuit model to explain extraordinary transmission
TL;DR: In this article, a circuit model based explanation for the extraordinary transmission (ET) of light phenomenon studied in recent scientific literature has been proposed, based on conventional waveguide/transmission line theory.
Journal ArticleDOI
Broadband extraordinary transmission in a single sub-wavelength aperture
TL;DR: Results show that significantly increased transmission is achieved through the sub-wavelength aperture from 4 GHz to 8 GHz when the device is applied and the frequency sensitivity of the new device is very low.
Proceedings ArticleDOI
Experimental results on metamaterial simulation using SRR-loaded waveguides
TL;DR: In this article, the split ring resonator (SRR) loaded waveguide is used as a simulator of a left-handed medium (LHM) for the simulation of negative magnetic permeability media (NMPM) and used for the study of wave propagation in these media.
Microstructure and hardness comparison of as-built inconel 625 alloy following various additive manufacturing processes
Ariel Gamon,Edel Arrieta,Paul R. Gradl,Colton Katsarelis,Lawrence E Murr,Ryan B. Wicker,Francisco Medina +6 more
TL;DR: Experimental examples of as-built microstructures and associated microindentation hardnesses (HV) for a wide range of metal additive manufacturing (AM) processes for Inconel 625 alloy are presented in this article.