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Listar por autor "Catalá Civera, José Manuel"

Mostrando ítems 1-20 de 77

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A New Stand-Alone Microwave Instrument for Measuring the Complex Permittivity of Materials at Microwave Frequencies

Gutiérrez Cano, José Daniel; Plaza González, Pedro José; Canós Marín, Antoni Josep; García-Baños, Beatriz; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L. (Institute of Electrical and Electronics Engineers, 2020-06)

[EN] This paper reports the development of a stand-alone and portable instrument designed to measure the complex permittivity of dielectric materials at microwave frequencies. The equipment consists of an in-house single-port ...
A Novel Technique for Deembeding the Unloaded Resonance Frequency from Measurements of Microwave Cavities

Canós Marín, Antoni Josep; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Reyes Davó, Elías de los (Institute of Electrical and Electronics Engineers, 2006-08)

[EN] A novel technique to extract the influence of coupling networks on the resonant frequency of cavities in one-port measurements is presented. The determination of the unloaded resonant frequency is performed directly ...
A step ahead on efficient microwave heating for kaolinite

Reinosa, J. J.; García-Baños, Beatriz; Catalá Civera, José Manuel; Fernández Lozano, J. F. (Elsevier, 2019-02)

[EN] The thermal evolution of kaolin clay under microwave radiation shows an unexpected large heating rate up to 500 degrees C/min for temperatures > 650 degrees C. Such heating rate is associated with a resistivity drop ...
Amine-functionalized mesoporous silica: A material capable of CO2 adsorption and fast regeneration by microwave heating

Nigar, Hakan; García-Baños, Beatriz; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Mallada, Reyes; Santamaria, Jesus (Wiley, 2016-02)

The surface of ordered mesoporous (MCM-48) silica has been subjected to covalent grafting with silane molecules containing one to three amino groups. The dielectric properties of the materials were studied in detail, and ...
An Accurate and Compact High Power Monocycle Pulse Transmitter for Microwave Ultra-Wideband Radar Sensors with an enhanced SRD model: Applications for Distance Measurement for lossy Materiel

Ahajjam, Younes; Aghzout, O.; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Driouach, Abdellah (Advanced Electromagnetics, 2019-09-05)

[EN] In This paper, a high power sub-nanosecond pulse transmitter for Ultra-wideband radar sensor is presented. The backbone of the generator is considered as a step recovery diode and unique pulse injected into the circuit, ...
An Advanced Electrical Properties Measurement Approach with a Designed Bi-Static Ultra-Wideband Impulse Radar Sensor

Ahajjam, Younes; Aghzout, Otman; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Driouach, Abdellah (The Electromagnetics Academy (EMW Publishing), 2018)

[EN] This paper reports on the development of a compact, low-cost, impulse bi-static UWB radar sensor for its use as non-destructive methods for electrical property measurement in industrial application. This UWB Radar ...
Análisis comparativo de diferentes metodologías para la medida de propiedades dieléctricas a frecuencias de microondas

Saura Camara, Alfonso (Universitat Politècnica de València, 2020-10-19)

[ES] El objetivo del Proyecto es el análisis, a la frecuencia de microondas, de las propiedades dieléctricas de materiales de diversa naturaleza. El trabajo incluye el empleo de diversas cavidades y métodos de análisis ( ...
Aplicación de microondas en el tratamiento de emulsiones del tipo agua en aceite (w/o) y aceite en agua (o/w)

Pérez Páez, Rocío (Universitat Politècnica de València, 2009-04-02)

Las emulsiones del tipo agua en aceite (w/o) y aceite en agua (o/w) están compuestas por una mezcla de aceite, agua, lodo y otros agentes. Se pueden encontrar en el proceso y/o en los vertidos de diferentes tipos de ...
Bibliography, Background and Overview of UWB radar sensor

Younes, Ahajjam; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Driouech, Abdellah (International Journal of Engineering Research and Applications, 2014-11)

Due to the lack of studies in the literature that address the issue of UWB radar sensors, and also because of the great importance of this technology, which is gaining heavily in new application areas, such as the process ...
Caracterización electromagnética de materiales dieléctricos mediante cavidad cilíndrica dual y kit para viales

Fernández Pérez, Samuel (Universitat Politècnica de València, 2023-10-05)

[ES] En este Trabajo Final de Grado (TFG) se presentan diversas técnicas de caracterización electromagnética de materiales dieléctricos en el rango de frecuencia de microondas. Se desarrollan las técnicas de cavidad ...
Caracterización electromagnética de materiales mediante cavidad dividida y sonda coaxial

Rubio Muñoz, Juan Manuel (Universitat Politècnica de València, 2023-10-05)

[ES] El objetivo de este Trabajo de Fin de Grado (TFG) es la caracterización electromagnética de materiales en el rango de frecuencia de las microondas empleando distintas técnicas de medición y realizando análisis de ...
Characterization method of dielectric properties of free falling drops in a microwave processing cavity and its application in microwave internal gelation

Cabanes Sempere, Maria; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Cozzo, Carmelo; Vaucher, S.; Pouchon, M. A. (IOP Publishing: Hybrid Open Access, 2013-09)

[EN] Microwave internal gelation (MIG) is a chemical process proposed for the production of nuclear particle fuel. The internal gelation reaction is triggered by a temperature increase of aqueous droplets falling by gravity ...
Control de la temperatura en sistemas de calentamiento por microondas

Plaza González, Pedro José (Universitat Politècnica de València, 2016-03-07)

[EN] Material heat processing systems using microwave energy have been used for more than 60 years. Design and implementation techniques have greatly evolved during this time, but a precise control in material temperature ...
Desarrollo de un interfaz LabVIEW para un adaptador de impedancias en guía de onda basado en postes metálicos a frecuencias de microondas

Costa Ahuir, Leandre (Universitat Politècnica de València, 2024-10-10)

[ES] El proyecto, en su mayor parte, consiste en la programación de un algoritmo en la interfaz LabVIEW para la adaptación automática de impedancias arbitrarias mediante el movimiento de tres stubs (postes metálicos) en ...
Desarrollo de un sistema automatizado para la medición de propiedades dieléctricas usando LabVIEW

Brotons Montoro, Carlos (Universitat Politècnica de València, 2024-10-10)

[ES] Este proyecto se centra en el diseño y desarrollo de un programa en LabVIEW para el control de un motor y la gestión de VNA. El sistema está compuesto por un horno convencional, un motor, una cavidad y un VNA, los ...
Design and Implementation of a UWB Radar Sensor for Non-Destructive Application

Ahajjam, Younes (Universitat Politècnica de València, 2019-07-22)

[ES] Debido a la importancia de los campos de aplicación del sensor de radar de banda ultraancha, y también a los requisitos de cada aplicación específica, existe una demanda creciente de diseño compacto, de bajo coste y ...
Detection of Anti-Counterfeiting Markers through Permittivity Maps Using a Micrometer Scale near Field Scanning Microwave Microscope

Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; Plaza González, Pedro José; Penaranda-Foix, Felipe L. (MDPI AG, 2021-08)

[EN] This paper describes the use of microwave technology to identify anti-counterfeiting markers on banknotes. The proposed method is based on a robust near-field scanning microwave microscope specially developed to measure ...
Dielectric and optical evaluation of high-emissivity coatings for temperature measurements in microwave applications

García-Baños, Beatriz; Chiariotti, Paolo; Napolitano, Rachele; Pandarese, Giuseppe; Navarrete Algaba, Laura; Revel, Gian Marco; Catalá Civera, José Manuel (Elsevier, 2022-07)

[EN] In this work, several commercial high-emissivity coatings have been characterized in terms of emissivity, chemical composition and dielectric properties as a function of temperature, under microwave irradiation. ...
Dielectrical, microstructural and flow properties of sauce model systems based on starch, gums and salt

Guardeño Expósito, Luis Miguel; Catalá Civera, José Manuel; Plaza González, Pedro José; Sanz, T.; Salvador, A.; Fiszman, S.; Hernando Hernando, Mª Isabel (Elsevier, 2010-05)

The dielectric properties of salted systems based on different hydrocolloids (native or modified starches, or on iota, lambda, or kappa carrageenan) as models for microwaveable white sauces were studied. Microstructural ...
Directional Coupler Calibration for Accurate Online Incident Power Measurements

Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel; García-Baños, Beatriz (Institute of Electrical and Electronics Engineers, 2021-06)

[EN] This letter proposes a calibration method to properly measure the incident power in a directional coupler (DC) when the measurement configuration has low directivity. The proposed method is based on measurements of ...