Search Results - "Jofre, LluÍs"

Frequency, Radiation Pattern and Polarization Reconfigurable Antenna Using a Parasitic Pixel Layer by Rodrigo, Daniel, Cetiner, Bedri A., Jofre, Lluís

“…This communication presents a reconfigurable antenna capable of independently reconfiguring the operating frequency, radiation pattern and polarization. A…”
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Frequency and Radiation Pattern Reconfigurability of a Multi-Size Pixel Antenna by Rodrigo, D., Jofre, L.

“…Pixel reconfigurable apertures constitute one of the most adaptable structures regarding antenna reconfiguration, being capable to achieve frequency and…”
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Circular Beam-Steering Reconfigurable Antenna With Liquid Metal Parasitics by Rodrigo, D., Jofre, L., Cetiner, B. A.

“…A novel antenna reconfiguration mechanism based on the displacement of liquid metal sections is presented. The liquid nature of the moving parts of the antenna…”
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Microstrip-Fed 3D-Printed H-Sectorial Horn Phased Array by Zhou, Ivan, Pradell, Lluís, Villegas, José Maria, Vidal, Neus, Albert, Miquel, Jofre, Lluís, Romeu, Jordi

“…A 3D-printed phased array consisting of four H-Sectorial horn antennas of 200 g weight with an ultra-wideband rectangular-waveguide-to-microstrip-line…”
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A 3-D Volume-of-Fluid advection method based on cell-vertex velocities for unstructured meshes by Jofre, Lluís, Lehmkuhl, Oriol, Castro, Jesús, Oliva, Assensi

“…•Volume-of-Fluid method for 3D unstructured meshes.•Volume-of-Fluid advection method based on cell-vertex velocities.•The new implementation minimizes…”
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Analysis of the Electromagnetic Signature of Reinforced Concrete Structures for Nondestructive Evaluation of Corrosion Damage by Roqueta, Gemma, Jofre, Lluís, Feng, M. Q.

“…This paper presents a nondestructive corrosion damage detection method for reinforced concrete structures based on the analysis of the electromagnetic…”
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Design and Performance Evaluation of a Dielectric Flat Lens Antenna for Millimeter-Wave Applications by Imbert, Marc, Papio, Anna, De Flaviis, Franco, Jofre, Lluis, Romeu, Jordi

“…In this letter, a practical fabrication of a novel inhomogeneous gradient-index dielectric flat lens for millimeter-wave applications is presented. A previous…”
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A Parasitic Layer-Based Reconfigurable Antenna Design by Multi-Objective Optimization by Xiaoyan Yuan, Zhouyuan Li, Rodrigo, D., Mopidevi, H. S., Kaynar, O., Jofre, L., Cetiner, B. A.

“…A parasitic layer-based multifunctional reconfigurable antenna (MRA) design based on multi-objective genetic algorithm optimization used in conjunction with…”
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Unit Cell for Frequency-Tunable Beamscanning Reflectarrays by Rodrigo, Daniel, Jofre, Lluis, Perruisseau-Carrier, Julien

“…A reflectarray cell able to dynamically control the reflection phase at a variable frequency is presented. This capability enables beam-scanning reflectarrays…”
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Thermodynamics-informed neural network for recovering supercritical fluid thermophysical information from turbulent velocity data by Masclans, Núria, Vázquez-Novoa, Fernando, Bernades, Marc, Badia, Rosa M., Jofre, Lluís

“…Recent research has highlighted the potential of supercritical fluids under high-pressure transcritical conditions to achieve microconfined turbulence as a…”
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Conservation Properties of Unstructured Finite-Volume Mesh Schemes for the Navier-Stokes Equations by Jofre, Lluís, Lehmkuhl, Oriol, Ventosa, Jordi, Trias, F. Xavier, Oliva, Assensi

“…The Navier-Stokes equations describe fluid flow by conserving mass and momentum. There are two main mesh discretizations for the computation of these…”
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Transcritical diffuse-interface hydrodynamics of propellants in high-pressure combustors of chemical propulsion systems by Jofre, Lluís, Urzay, Javier

“…Rocket engines and high-power new generations of gas-turbine jet engines and diesel engines oftentimes involve the injection of one or more reactants at…”
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RFID Multiprobe Impedance-Based Sensors by Capdevila, Santiago, Jofre, Lluís, Bolomey, Jean-Charles, Romeu, Jordi

“…In this paper, a passive multiprobe sensor using conventional UHF radio frequency identification (RFID) tags is presented. The RFID link between the reader and…”
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A Reconfigurable Antenna With Beam Steering and Beamwidth Variability for Wireless Communications by Towfiq, Md. Asaduzzaman, Bahceci, Israfil, Blanch, Sebastian, Romeu, Jordi, Jofre, Lluis, Cetiner, Bedri A.

“…A reconfigurable antenna (RA) capable of steering its beam into the hemisphere corresponding to <inline-formula> <tex-math notation="LaTeX">\theta \in…”
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Multi-Loaded Modulated Scatterer Technique for Sensing Applications by Capdevila, S., Jofre, L., Romeu, J., Bolomey, J. C.

“…Modulated scatterer technique (MST) probes have been commonly used for near-field mapping application in antenna measurements as well as in imaging…”
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Resonance-Based Microwave Technique for Body Implant Sensing by González-López, Giselle, Jofre Roca, Lluis, Amorós García de Valdecasas, Susana, Rodríguez-Leor, Oriol, Gálvez-Montón, Carolina, Bayés-Genís, Antoni, O'Callaghan, Joan

“…There is an increasing need for safe and simple techniques for sensing devices and prostheses implanted inside the human body. Microwave wireless inspection…”
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Flow regime analysis of high-pressure transcritical fluids in microducts by Monteiro, Carlos, Jofre, Lluís

“…Microduct flows are known for their inherent laminar regimes resulting from the characteristic small dimensions and low velocities. In this regard, direct…”
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Broadband Propagative Microwave Imaging of Steel Fiber Reinforced Concrete Wall Structures by Roqueta, Gemma, Jofre, Lluís, Romeu, Jordi, Blanch, Sebastián

“…In this paper, a system for the broadband microwave nondestructive testing of steel fiber reinforced concrete (SFRC) is presented. The system is able to…”
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Debye Frequency-Extended Waveguide Permittivity Extraction for High Complex Permittivity Materials: Concrete Setting Process Characterization by Gonzalez-Lopez, Giselle, Blanch, Sebastian, Romeu, Jordi, Jofre, Lluis

“…A waveguide with central frequency 868 MHz is used in the transmission/reflection operation regime to accurately measure the behavior of the complex…”
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Assessment of LTCC-Based Dielectric Flat Lens Antennas and Switched-Beam Arrays for Future 5G Millimeter-Wave Communication Systems by Imbert, Marc, Romeu, Jordi, Baquero-Escudero, Mariano, Martinez-Ingles, Maria-Teresa, Molina-Garcia-Pardo, Jose-Maria, Jofre, Lluis

“…This paper presents the design, low-temperature co-fired ceramics (LTCC) fabrication, and full experimental verification of novel dielectric flat lens antennas…”
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