Search Results - "Juan D. Baena"

Broadband and Thin Linear-to-Circular Polarizers Based on Self-Complementary Zigzag Metasurfaces by Baena, Juan D., Glybovski, Stanislav B., del Risco, Juan P., Slobozhanyuk, Alexey P., Belov, Pavel A.

“…In this paper, we have studied a practical design of a broadband linear-to-circular polarizer based on a self-complementary metasurface composed of…”
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Improving B1+ homogeneity in abdominal imaging at 3 T with light, flexible, and compact metasurface by Vorobyev, Vsevolod, Shchelokova, Alena, Efimtcev, Alexander, Baena, Juan D., Abdeddaim, Redha, Belov, Pavel, Melchakova, Irina, Glybovski, Stanislav

“…Purpose Radiofrequency field inhomogeneity is a significant issue in imaging large fields of view in high‐ and ultrahigh‐field MRI. Passive shimming with…”
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Homogenization of Periodic Structures Using the Multimodal Transfer Matrix Method by Escobar, Ana C., Mesa, Francisco, Quevedo-Teruel, Oscar, Baena, Juan D.

“…This work presents a method for obtaining the constitutive parameters of periodic structures from the computation of their dispersion relation and average…”
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An artificial dielectric slab for ultra high-field MRI: Proof of concept by Vorobyev, Vsevolod, Shchelokova, Alena, Zivkovic, Irena, Slobozhanyuk, Alexey, Baena, Juan D., del Risco, Juan P., Abdeddaim, Redha, Webb, Andrew, Glybovski, Stanislav

“…[Display omitted] •First ever successful application of artificial dielectric in MRI.•Transmit field can be increased in the area of the parietal lobes at 7…”
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Frequency-Controllable Polarization Rotation of THz Waves With an SCMS by Sayanskiy, Andrey, Kuznetsov, Sergei A., Tanygina, Daria S., Del Risco, Juan P., Glybovski, Stanislav, Baena, Juan D.

“…In this article, we theoretically and experimentally study the conversion from a circularly polarized (CP) plane electromagnetic wave into a linearly polarized…”
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Angle-Dependent Metasurface for Nonspectroscopic THz Sensing of Submicrometer Films by Tumashov, Maksim A., Baena, Juan D., del Risco, Juan P., Lazorskiy, Pavel A., Glybovski, Stanislav B., Kuznetsov, Sergei A.

“…Efficient sensors for terahertz (THz) frequency range are in high demand for applications in biomedicine, chemistry, security, and electronics. Conventional…”
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Artificial magnetic metamaterial design by using spiral resonators by Baena, Juan D., Marqués, Ricardo, Medina, Francisco, Martel, Jesús

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Babinet's principle and saturation of the resonance frequency of scaled-down complementary metasurfaces by Ortiz, Julián D., Baena, Juan D., Marqués, Ricardo, Enemuo, Amarachukwu N., Gollub, Jonah, Akhmechet, Roman, Penkov, Boyan, Sarantos, Chris, Crouse, David T.

“…It has been previously demonstrated that the resonant frequency of the Split Ring Resonator (SRR) reaches a saturation value when its size is continuously…”
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A Focusing Circular-Polarization THz Beam Splitter Based on a Self-Complementary Metasurface by Lenets, Vladimir A., Kuznetsov, Sergei A., Sayanskiy, Andrey D., Lazorskiy, Pavel A., Baena, Juan D., Glybovski, Stanislav B.

“…Quasi-optical polarization beam splitters are important components of terahertz instrumentation widely used in interferometric and polarimetric measurements…”
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A new LC series element for compact bandpass filter design by Martel, J., Marques, R., Falcone, F., Baena, J.D., Medina, F., Martin, F., Sorolla, M.

“…A new LC series element based on a modified version of the split rings resonator introduced in is proposed. Owing to its small electrical size, the new open…”
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Effective negative-ε stopband microstrip lines based on complementary split ring resonators by FALCONE, Francisco, LOPETEGI, Txema, BAENA, Juan D, MARQUES, Ricardo, MARTIN, Ferran, SOROLLA, Mario

“…In this letter a super-compact stopband microstrip structure is proposed. The frequency gap is produced by an array of complementary split ring resonators…”
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Characteristic Mode Decomposition of Polarizability Tensors by Escobar, Ana C., Baena, Juan D., Jelinek, Lukas

“…This abstract presents a method for evaluating four polarizability tensors using characteristic mode decomposition and scattering description based on the…”
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Reducing losses and dispersion effects in multilayer metamaterial tunnelling devices by Baena, Juan D, Jelinek, Lukas, Marqués, Ricardo

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THIN PERFECT ABSORBERS BASED ON METAMATERIALS FOR OPTICAL FREQUENCIES by Juan P. Del Risco, Juan D. Baena, Julian D. Ortiz

“…In this work a bidimensional array of particles is approached like a system of dipoles characterized by their electric and magnetic polarizabilities. The…”
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MEASUREMENTS OF PERMITTIVITY BASED IN MICROSTRIP TECHNOLOGY by Laura M. Pulido-Mancera, Juan C. González, Alba Ávila, Juan D. Baena

“…The Complementary Split Ring Resonator (CSRR) geometry is used in conjunction with a microstrip line to create a device able to measure the electric…”
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Improving homogeneity in abdominal imaging at 3 T with light, flexible, and compact metasurface by Vorobyev, Vsevolod, Shchelokova, Alena, Efimtcev, Alexander, Baena, Juan D., Abdeddaim, Redha, Belov, Pavel, Melchakova, Irina, Glybovski, Stanislav

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Improving B 1 + homogeneity in abdominal imaging at 3 T with light, flexible, and compact metasurface by Vorobyev, Vsevolod, Shchelokova, Alena, Efimtcev, Alexander, Baena, Juan D, Abdeddaim, Redha, Belov, Pavel, Melchakova, Irina, Glybovski, Stanislav

“…Radiofrequency field inhomogeneity is a significant issue in imaging large fields of view in high- and ultrahigh-field MRI. Passive shimming with coupled coils…”
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Theory of three-dimensional subdiffraction imaging by Marques, Ricardo, Freire, Manuel J., Baena, Juan D.

“…Subdiffraction image formation and measurement are analyzed. It is shown that subdiffraction imaging devices cannot produce focusing of energy into…”
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Exploring Dispersion Characteristics of a Glide-Symmetric Square Patch Metamaterial by Enriquez, Jim A., Baena, Juan D., Belov, Pavel A.

“…This work investigates the dispersion characteristics of an anisotropic metamaterial composed of glide-symmetric metal square patches in a vacuum background…”
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Dispersion Characteristics of a Glide-Symmetric Square Patch Metamaterial with Giant Anisotropy by Enriquez, Jim A, Koreshin, Eugene, Del Risco, Juan P, Belov, Pavel A, Baena, Juan D

“…This paper investigates the dispersion characteristics of a highly anisotropic metamaterial comprised of metal square patches arranged in a glide symmetry…”
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