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 ...
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 ...
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 ...
Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; Bows, John; Penaranda-Foix, Felipe L.(Elsevier, 2017-06)
[EN] The in situ dielectric properties of a starch-based food pellet have been measured during microwave expansion. A dual-mode cylindrical cavity allowed simultaneous microwave heating and dielectric measurements of a ...
Catalá Civera, José Manuel; Canós Marín, Antoni Josep; Plaza González, Pedro José; Gutiérrez Cano, José Daniel; García Baños, Beatriz; Penaranda-Foix, Felipe L.(Institute of Electrical and Electronics Engineers (IEEE), 2015-09)
A microwave cavity and heating system for microwave processing and in situ dynamic measurements of the complex permittivity of dielectric materials at high temperatures (~1000ºC) has been developed. The method is based on ...
Vicente-Jurado, Diana; García-Segovia, Purificación; Gutiérrez Cano, José Daniel; Martínez-Monzó, Javier; Catalá Civera, José Manuel; Igual Ramo, Marta(MDPI AG, 2023-10-14)
[EN] Third-generation (3G) rice pellets were obtained using rice flour (RF) and rice grits (RG), raw materials of similar compositions but different particle sizes. The samples were mixed with water to 25% moisture and ...
Gutiérrez Cano, José Daniel; Hamilton, Ian E.; Catalá Civera, José Manuel; Bows, John; Penaranda-Foix, Felipe L.(Elsevier, 2018)
[EN] The evolution of dielectric properties of starch-based food pellets with different moisture contents was measured during microwave expansion to determine the effect of water content on the expansion dynamics.
Dynamic ...
Marqués-Villarroya, David; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel(Institute of Electrical and Electronics Engineers, 2017)
[EN] An enhanced full-wave method based on circuit analysis is presented in this paper, where the whole set of modes TEmnp and TMmnp are taken into account. The modeling of a split cylinder resonator is done with two circuit ...
Marqués-Villarroya, David; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel(The Electromagnetics Academy (EMW Publishing), 2017)
[EN] In this paper, a general multilayer circular cavity with N slabs is analyzed analytically, obtaining characteristic equations for TE and TM modes to compute the complex resonant frequency efficiently using an algorithm ...
Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; López Buendía, Ángel M.; Plaza González, Pedro José; Penaranda-Foix, Felipe L.(MDPI AG, 2022-02)
[EN] The identification of the minerals composing rocks and their dielectric characterization is essential for the utilization of microwave energy in the rock industry. This paper describes the use of a near-field scanning ...
Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Plaza González, Pedro José(Elsevier, 2022-03)
[EN] Accurate determination of permittivity is a crucial factor for successfully developing new food processing technologies at radio frequencies. An improved measurement test fixture based on an open-ended coaxial probe ...
Canós Marín, Antoni Josep; García Baños, Beatriz; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Gutiérrez Cano, José Daniel(Institute of Electrical and Electronics Engineers (IEEE), 2013-12)
An improvement of the accuracy of dielectric measurements of the open-ended coaxial resonator method is described. The technique is based on an empirical technique for
de-embedding the coupling network excited by electric ...
Sánchez-Marín, Juan Rafael; Gutiérrez Cano, José Daniel; Plaza González, Pedro José; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel(Elsevier, 2022-11)
[EN] A fast method for microwave processing and measurement of dielectric and thermal properties of materials as a function of temperature has been developed (MW-DETA). Unlike previous approaches, the method provides totally ...
Gutiérrez Cano, José Daniel(Universitat Politècnica de València, 2022-09-06)
[ES] La permitividad es una propiedad física de los materiales que describe su comportamiento en presencia de un campo electromagnético. Los sensores de microondas pueden desempeñar un papel esencial en las tareas de ...
Alvarez, Jose Oliverio; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel(Institute of Electrical and Electronics Engineers, 2020-05)
[EN] Permittivity is a useful tool to characterize the composition and quality of many geomaterials. In general, the non-resonant permittivity measurement methods exhibit a higher degree of uncertainty than their resonant ...