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dc.contributor.authorAlbero Ortíz, Antonio 
dc.contributor.authorMonzó Cabrera, Juan 
dc.contributor.authorDíaz Morcillo, Alejandro Benedicto 
dc.contributor.authorRequena Pérez, María Eugenia 
dc.date.accessioned2010-11-12T13:46:12Z
dc.date.available2010-11-12T13:46:12Z
dc.date.issued2006-02
dc.identifier.citationREQUENA PÉREZ, María E., ALBERO ORTIZ, Antonio, MONZÓ CABRERA, Juan, DÍAZ MORCILLO, Alejandro. Combined use of genetic algorithms and gradient descent optmization methods for accurate inverse permittivity measurement. IEEE Transactions on Microwave Theory and Techniques, 54 (2): 615 - 624 p. Febrero 2006. ISSN 0018-9480es
dc.identifier.issn0018-9480
dc.description.abstractA novel inverse transmission-line method for the complex permittivity determination of arbitrary shaped materials is presented. Complex permittivity is inferred by using an inverse calculation procedure, which is based on a combined optimization strategy of both genetic algorithms and the gradient descent method. The optimization procedure matches the measured and simulated complex scattering parameters’ frequency behavior of materials within a WR340 waveguide. High accuracy and practical suitability are validated through experimental tests. The dielectric properties of PTFE and epoxy resin mixed with iron–oxide-doped fiberglass have been measured for different shapes and positions. Dielectric multilayer structures have been used to demonstrate that this technique is able to measure the individual permittivity of each element of the structure. Both twoand three-dimensional approaches have been carried out and their advantages and drawbacks discussed.es
dc.formatapplication/pdf
dc.language.isoenges
dc.publisherIEEE Microwave Theory and Techniques Societyes
dc.rightsCopyright © 2006 IEEEes
dc.titleCombined use of genetic algorithms and gradient descent optimization methods for accurate inverse permittivity measurementes
dc.typeinfo:eu-repo/semantics/articlees
dc.subject.otherTeoría de la Señal y las Comunicacioneses
dc.subjectMedición de permitividad complejaes
dc.subjectMétodo GDes
dc.subjectEnergía de microondases
dc.subjectComplex permittivity measurementes
dc.subjectGradient descent (GD) methodes
dc.subjectMicrowave energyes
dc.subjectAlgoritmos genéticos (AG)
dc.subjectGenetic algorithm (GA)
dc.identifier.urihttp://hdl.handle.net/10317/1427
dc.contributor.investgroupGrupo de Electromagnetismo y Materia (GEM)es
dc.identifier.doi10.1109/TMTT.2005.862671


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