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Detection of Low-Contrast Objects with a Focusing Transmitarray

dc.contributor.authorLeón Fernández, Germán 
dc.contributor.authorGonzález Plaza, Enrique 
dc.contributor.authorLoredo Rodríguez, Susana 
dc.contributor.authorRodríguez Pino, Marcos
dc.descriptionIEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 13-15 noviembre de 2017, Tel-Aviv (Israel)spa
dc.description.abstractA Focusing Transmitarray is a quasi-periodic planar lens that is able to focus the energy of a feed at a spot in the Near Field of the lens. In this work, this kind of lens has been used for detection under low contrast conditions. The use of this lens allows non-contact measurements, therefore increasing the sensitivity of a detection system. The resolution of the lens has been experimentally studied by measuring the separation between two metal strips (high contrast) and between two plastic strips on a foam layer (low contrast). This measurement set-up has been used to detect small objects on a metal plate. This screen reflects all the incident radiation hiding the presence of any small object. Using a focusing lens and a proper, but simple, calibration it is possible to find the object without any ambiguityspa
dc.description.sponsorshipProject MIRIIEM with ref. TEC2014-540005-P of the Ministerio de Economía y Competitividad, and the research project of the Gobierno del Principado de Asturias / FEDER with ref. GRUPIN14-114spa
dc.relation.ispartof2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)spa
dc.rights© 2017 IEEE
dc.rightsCC Reconocimiento - No comercial - Sin obras derivadas 4.0 Internacional
dc.subjectDefect detectionspa
dc.subjectNear field focusingspa
dc.titleDetection of Low-Contrast Objects with a Focusing Transmitarrayspa
dc.relation.projectIDPincipado de Asturias/GRUPIN14-114

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