Gutiérrez Cano, JD.; Plaza González, PJ.; Canós Marín, AJ.; García-Baños, B.; Catalá Civera, JM.; Penaranda-Foix, FL. (2020). A New Stand-Alone Microwave Instrument for Measuring the Complex Permittivity of Materials at Microwave Frequencies. IEEE Transactions on Instrumentation and Measurement. 69(6):3595-3605. https://doi.org/10.1109/TIM.2019.2941038
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/165728
Título:
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A New Stand-Alone Microwave Instrument for Measuring the Complex Permittivity of Materials at Microwave Frequencies
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Autor:
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Gutiérrez Cano, José Daniel
Plaza González, Pedro José
Canós Marín, Antoni Josep
García-Baños, Beatriz
Catalá Civera, José Manuel
Penaranda-Foix, Felipe L.
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions
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Fecha difusión:
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Resumen:
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[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 ...[+]
[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 vectorial reflectometer and a resonant coaxial bi-reentrant microwave cavity where the material under test is placed inside a Pyrex vial, making the device appropriate for measuring liquids, semi-solids, powders and granular materials. The relation between the dielectric properties of the involved materials and the cavity resonance has been solved by numerical methods based on mode-matching and circuit analysis. In order to increase the measurement range, so that low to high loss materials can be characterized in the same cavity, the effect of the coupling network is de-embedded from the resonance measurements. The performance of the newly devised instrument is evaluated by error/uncertainty analysis and comparative studies with other well-established instruments and methods. Errors lower than 2% in the dielectric constant, and 5% in the loss factor, are found. This simple, portable, affordable and robust device could help non-specialized personnel to accurately measure dielectric properties of materials used in a wide range of microwave applications.
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Palabras clave:
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Dielectric properties
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Microwave cavities and resonators
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Microwave instruments
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Permittivity measurements
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Vector Network Analyzer (VNA)
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Derechos de uso:
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Reserva de todos los derechos
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Fuente:
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IEEE Transactions on Instrumentation and Measurement. (issn:
0018-9456
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DOI:
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10.1109/TIM.2019.2941038
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Editorial:
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Institute of Electrical and Electronics Engineers
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Versión del editor:
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https://doi.org/10.1109/TIM.2019.2941038
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Código del Proyecto:
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info:eu-repo/grantAgreement/MINECO//TEC2015-70272-R/ES/NUEVAS TECNICAS PARA SEGURIDAD DOCUMENTAL MEDIANTE MICROSCOPIO MICROONDAS CON RESOLUCION MICROMETRICA/
info:eu-repo/grantAgreement/AEI//BES-2016-077296/
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Descripción:
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"© 2020 IEEE. Personal use of this material is permitted. Permissíon from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertisíng or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works."
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Agradecimientos:
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This paper has been financially supported through the grant reference BES-2016-077296 of the call Convocatoria de las ayudas para contratos predoctorales para la formacion de doctores de 2016 by Ministerio de Economia y ...[+]
This paper has been financially supported through the grant reference BES-2016-077296 of the call Convocatoria de las ayudas para contratos predoctorales para la formacion de doctores de 2016 by Ministerio de Economia y Competitividad (MINECO) and by European Social Funds (ESF) of European Union and the project SEDMICRON TEC2015-70272-R (MINECO/FEDER) supported by Ministerio de Economia y Competitividad (MINECO) and by European Regional Development Funds (ERDF) of European Union. The Associate Editor coordinating the review process was Samir Trabelsi.
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Tipo:
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Artículo
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