{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,14]],"date-time":"2025-12-14T08:29:56Z","timestamp":1765700996554,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,27]],"date-time":"2022-12-27T00:00:00Z","timestamp":1672099200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003030","name":"Agency for Administration of University and Research","doi-asserted-by":"publisher","award":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"],"award-info":[{"award-number":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"]}],"id":[{"id":"10.13039\/501100003030","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Spanish \u201cComision Interministerial de Ciencia y Tecnologia\u201d (CICYT)","award":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"],"award-info":[{"award-number":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"]}]},{"name":"National Center for Scientific and Technological Research (CNRST)","award":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"],"award-info":[{"award-number":["(FI-SDUR)(2021 FISDU 00195)","CICYT PID2019-107885GB-C31","PPR2\/2015\/36"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The need for non-ionizing techniques for medical imaging applications has led to the use of microwave signals. Several systems have been introduced in recent years based on increasing the number of antennas and frequency bandwidth to obtain high resolution and good accuracy in locating objects. A novel microwave imaging system that reduces the number of required antennas for precise target location appropriate for medical applications is presented. The proposed system consists of four UWB extended gap ridge horn (EGRH) antennas covering the frequency band from 0.5 GHz to 1.5 GHz mounted on a cylindrical phantom that mimics the brain in an orthogonal set of two EGRH probes. This configuration has the ability to control both the longitudinal and transversal dimensions of the reconstructed target\u2019s image, rather than controlling the spatial resolution, by increasing the frequency band that can be easily affected by medium losses. The system is tested numerically and experimentally by the detection of a cylindrical target within a human brain model.<\/jats:p>","DOI":"10.3390\/s23010271","type":"journal-article","created":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T05:31:54Z","timestamp":1672205514000},"page":"271","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Multi-Element UWB Probe Optimization for Medical Microwave Imaging"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7957-4044","authenticated-orcid":false,"given":"Youness","family":"Akazzim","sequence":"first","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"},{"name":"System of Information and Telecommunications Laboratory (LaSIT), Abdelmalek Essaadi University, Tetouan 93000, Morocco"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9722-9140","authenticated-orcid":false,"given":"Otman","family":"El Mrabet","sequence":"additional","affiliation":[{"name":"System of Information and Telecommunications Laboratory (LaSIT), Abdelmalek Essaadi University, Tetouan 93000, Morocco"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0197-5961","authenticated-orcid":false,"given":"Jordi","family":"Romeu","sequence":"additional","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0547-901X","authenticated-orcid":false,"given":"Luis","family":"Jofre-Roca","sequence":"additional","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1109\/MMM.2011.942702","article-title":"Microwave imaging for breast cancer","volume":"12","author":"Nikolova","year":"2011","journal-title":"IEEE Microw. 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