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dc.contributor.authorGuardiola, Marta
dc.contributor.authorDjafri, Kahina
dc.contributor.authorChallal, Mouloud
dc.contributor.authorGonzález Ballester, Miguel A.
dc.contributor.authorFernández-Esparrach, Glòria
dc.contributor.authorCamara, Oscar
dc.contributor.authorRomeu Robert, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationGuardiola, M. [et al.]. Design and evaluation of an antenna applicator for a microwave colonoscopy system. "IEEE transactions on antennas and propagation", 1 Agost 2019, vol. 67, núm. 8, p. 4968-4977.
dc.description© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising 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.
dc.description.abstractThis paper presents a design of a compact antenna applicator for a microwave colonoscopy system. Although colonoscopy is the most effective method for colorectal cancer detection, it suffers from important visualization restrictions that limit its performance. We recently reported that the contrast between healthy mucosa and cancer was 30%-100% for the relative permittivity and conductivity, respectively, at 8 GHz, and the complex permittivity increased proportionally to the degeneration rate of polyps (cancer precursors). The applicator is designed as a compact cylindrical array of eight antennas attached at the tip of a conventional colonoscope. The design presented here is a proof-of-concept applicator composed by one transmitting and one receiving cavity-backed U-shaped slot antenna elements fed by an L-shaped microstrip line. The antennas are low profile and present a high isolation at 8 GHz. The antenna performance is assessed with simulations and experimentally with a phantom composed by different liquids.
dc.format.extent10 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes
dc.subjectÀrees temàtiques de la UPC::Ciències de la salut::Medicina::Diagnòstic per la imatge
dc.subject.lcshMicrowave antennas
dc.subject.otherCancer detection
dc.subject.otherMicrowave antenna arrays
dc.titleDesign and evaluation of an antenna applicator for a microwave colonoscopy system
dc.subject.lemacAntenes de microones
dc.contributor.groupUniversitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorGuardiola, M.; Djafri, K.; Challal, M.; González Ballester, Miguel A.; Fernández-Esparrach, G.; Camara, O.; Romeu, J.
local.citation.publicationNameIEEE transactions on antennas and propagation

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