Search Results - "Villegas, J.M."

3D-printed Broadband Impedance Transformers Using Helical-microstrip Transmission Line Segments by Lopez-Villegas, J.M., Salas, A., Vidal, N.

“…In this article 3D-printed helical-microstrip transmission line segments are used to implement compact broadband impedance transformers intended to work in the…”
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Improvement of the quality factor of RF integrated inductors by layout optimization by Lopez-Villegas, J.M., Samitier, J., Cane, C., Losantos, P., Bausells, J.

“…A systematic method to improve the quality (Q) factor of RF integrated inductors is presented in this paper. The proposed method is based on the layout…”
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Accurate Physical Modeling of Discretization Error in 1-D Perfectly Matched Layers Using Finite-Difference Time-Domain Method by Lopez-Villegas, J.M., Vidal, N.

“…In this paper we present an accurate physical model of discretization error in a 1-D perfectly matched layer (PML) using the finite-difference time-domain…”
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FSK Coherent Demodulation Using Second- Harmonic Injection Locked Oscillator by Vidal, N., Macias-Montero, J.G., Lopez-Villegas, J.M.

“…We present an alternative coherent demodulation of frequency shift keying (FSK) signals based on the use of a super harmonic injection locked oscillator (ILO)…”
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Subcutaneous implanted antennas: interaction with biological tissues by Vidal, N., Lopez-Villegas, J.M., Sieiro, J.

“…Purpose - The purpose of this paper is to study the interaction of electromagnetic fields with biological tissues in the presence of antennas implanted…”
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Compact 3D-Printed Folded Branch-Line Hybrid Coupler based on Helical-Microstrip Transmission Lines by Salas-Barenys, A., Vidal, N., Lopez-Villegas, J.M.

“…The aim of this work is to fabricate and characterize a very compact branch-line coupler at the UHF band, where the wavelength is critical for miniaturization…”
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BPSK to ASK Signal Conversion Using Injection-Locked Oscillators-Part I: Theory by Lopez-Villegas, J.M., SieiroCordoba, J.J.

“…This paper presents a new method and circuit for the conversion of binary phase-shift keying (BPSK) signals into amplitude shift keying signals. The basic…”
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3D Printed 5-Order Butterworth Passive Filter with Conical Inductors for RF Broadband Applications by Salas-Barenys, A., Vidal, N., Lopez-Villegas, J.M.

“…This paper presents a full-3D manufacturing technology for RF electronics based on stereolitography 3D-printing and a metallization process that combines…”
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BPSK to ASK signal conversion using injection-locked oscillators-part II: experiment by Lopez-Villegas, J.M., Macias-Montero, J.G., Osorio, J.A., Cabanillas, J., Vidal, N., Samitier, J.

“…This paper demonstrates the feasibility of a new circuit for the conversion of binary phase-shift keying signals into amplitude-shift keying signals. In its…”
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Optimizing chemical control for Diatraea saccharalis (Lepidoptera: Crambidae) in sugarcane by Wilson, B.E., Salgado, L.D., Villegas, J.M.

“…The sugarcane borer, Diatraea saccharalis (Lepidoptera: Crambidae), is the primary pest of sugarcane, Saccharum spp., in much of North and South America…”
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Nuevo vehículo aéreo autónomo estable por construcción: configuración y modelo dinámico by Sánchez-Fontes, E., Avila Vilchis, J.C., Vilchis-González, A.H., Saldivar, B., Jacinto-Villegas, J.M., Martínez-Mendez, R.

“…En los últimos años, diferentes estrategias y modelos matemáticos se han desarrollado para analizar y controlar vehículos aéreos no tripulados. Este artículo…”
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Economic returns on seed treatment combinations in Louisiana rice by Wilson, B.E., Villegas, J.M., Stout, M.J.

“…The use of multiple insecticidal seed treatments in combination to control a greater spectrum of pests has been increasing in rice production in the U.S…”
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Continuous phase shift of sinusoidal signals using injection locked oscillators by Lopez-Villegas, J.M., Macias, J.G., Osorio, J.A., Cabanillas, J., Sieiro, J.J., Samitier, J., Vidal, N.

“…This work presents an alternative to generate continuous phase shift of sinusoidal signals based on the use of super harmonic injection locked oscillators…”
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Cyantraniliprole: A new insecticidal seed treatment for U.S. rice by Wilson, B.E., Villegas, J.M., Way, M.O., Pearson, R.A., Stout, M.J.

“…Current pest management practices for the rice water weevil (Lissorhoptrus oryzophilus Kuschel) and the Mexican rice borer (Eoreuma loftini Dyar) in U.S. rice…”
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Biological control of green and blue molds on postharvest lemon by lactic acid bacteria by Volentini, S.I., Olmedo, G.M., Grillo-Puertas, M., Rapisarda, V.A., Hebert, E.M., Cerioni, L., Villegas, J.M.

“…•Antifungal activity against Penicillium spp. varied among LAB strains.•24 h-supernatant obtained from CRL 1905 exerted the strongest fungicidal…”
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Design, manufacture and characterization of compact filter assemblies for radiofrequency applications by Lopez-Villegas, J.M., Vidal, N., Salas, A.

“…This paper presents the use of additive manufacturing in the design and fabrication of a non-planar fully 3D-printed low-pass filter. The process implements…”
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Very compact 3D-printed folded branch-line hybrid coupler based on loaded helical-microstrip transmission lines by Salas-Barenys, A., Vidal, N., López-Villegas, J.M.

“…This paper presents a 3D topology for high miniaturization of the well-known hybrid branch-line coupler at the UHF band. A preliminary work already proposed…”
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Sellar region: Magnetic resonance imaging assessment of uncommon tumors and pseudotumors by Adri, D., Olivera, F., Villegas, J.M., Funes, J., Pietrani, M.

“…To show the usefulness of magnetic resonance imaging in the anatomic and pathologic characterisation of the sellar region, emphasising the differential…”
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Plerixafor in patients with lymphoma and multiple myeloma: effectiveness in cases with very low circulating CD34+ cell levels and preemptive intervention vs remobilization by Sánchez-Ortega, I, Querol, S, Encuentra, M, Ortega, S, Serra, A, Sanchez-Villegas, J M, Grifols, J R, Pujol-Balaguer, M M, Pujol-Bosch, M, Martí, J M, Garcia-Cerecedo, T, Barba, P, Sancho, J M, Esquirol, A, Sierra, J, Duarte, R F

“…This retrospective study presents data from 105 consecutive multiple myeloma and lymphoma patients who had PB CD34+ cell counts <10/μL on day 4 of steady-state…”
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3D-Printed UHF-RFID Tag for Embedded Applications by Vidal, N., Lopez-Villegas, J.M., Romeu, J., Salas, A., Garcia-Miquel, A., Gonzalez, G., Jofre, L.

“…This paper presents the design, manufacture and characterization of a novel 3D passive UHF-RFID tag for embedded applications. The prototype is fabricated…”
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