{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T11:27:27Z","timestamp":1770982047660,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2018,11,26]],"date-time":"2018-11-26T00:00:00Z","timestamp":1543190400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Imaging"],"abstract":"<jats:p>A new prototype of a tomographic system for microwave imaging is presented in this paper. The target being tested is surrounded by an ad-hoc 3D-printed structure, which supports sixteen custom antenna elements. The transmission measurements between each pair of antennas are acquired through a vector network analyzer connected to a modular switching matrix. The collected data are inverted by a hybrid nonlinear procedure combining qualitative and quantitative reconstruction algorithms. Preliminary experimental results, showing the capabilities of the developed system, are reported.<\/jats:p>","DOI":"10.3390\/jimaging4120139","type":"journal-article","created":{"date-parts":[[2018,11,27]],"date-time":"2018-11-27T03:31:33Z","timestamp":1543289493000},"page":"139","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["A Tomograph Prototype for Quantitative Microwave Imaging: Preliminary Experimental Results"],"prefix":"10.3390","volume":"4","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6636-1448","authenticated-orcid":false,"given":"Alessandro","family":"Fedeli","sequence":"first","affiliation":[{"name":"Department of Electrical, Electronic, Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manuela","family":"Maffongelli","sequence":"additional","affiliation":[{"name":"Department of Technology and Innovation, University of Applied Sciences of Southern Switzerland, 6928 Manno, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ricardo","family":"Monleone","sequence":"additional","affiliation":[{"name":"Department of Technology and Innovation, University of Applied Sciences of Southern Switzerland, 6928 Manno, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudio","family":"Pagnamenta","sequence":"additional","affiliation":[{"name":"Department of Technology and Innovation, University of Applied Sciences of Southern Switzerland, 6928 Manno, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matteo","family":"Pastorino","sequence":"additional","affiliation":[{"name":"Department of Electrical, Electronic, Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0415-0957","authenticated-orcid":false,"given":"Samuel","family":"Poretti","sequence":"additional","affiliation":[{"name":"Department of Technology and Innovation, University of Applied Sciences of Southern Switzerland, 6928 Manno, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5291-462X","authenticated-orcid":false,"given":"Andrea","family":"Randazzo","sequence":"additional","affiliation":[{"name":"Department of Electrical, Electronic, Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Salvad\u00e8","sequence":"additional","affiliation":[{"name":"Department of Technology and Innovation, University of Applied Sciences of Southern Switzerland, 6928 Manno, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3304","DOI":"10.1109\/TBME.2012.2209202","article-title":"Clinical Microwave Tomographic Imaging of the Calcaneus: A First-in-Human Case Study of Two Subjects","volume":"59","author":"Meaney","year":"2012","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"258","DOI":"10.1109\/TAP.2016.2630598","article-title":"Wideband microwave camera for real-time 3-D imaging","volume":"65","author":"Ghasr","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"673027","DOI":"10.1155\/2013\/673027","article-title":"Microwave Imaging of Human Forearms: Pilot Study and Image Enhancement","volume":"2013","author":"Gilmore","year":"2013","journal-title":"Int. J. Biomed. Imaging"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Benedetto, A., and Pajewski, L. (2015). Civil Engineering Applications of Ground Penetrating Radar, Springer.","DOI":"10.1007\/978-3-319-04813-0"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"76","DOI":"10.1109\/MAP.2016.2609818","article-title":"Analysis and design of a concrete embedded antenna for wireless monitoring applications","volume":"58","author":"Castorina","year":"2016","journal-title":"IEEE Antennas Propag. Mag."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"140","DOI":"10.1109\/TIM.2011.2159144","article-title":"Impact of background noise on dielectric reconstructions obtained by a prototype of microwave axial tomograph","volume":"61","author":"Monleone","year":"2012","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2119","DOI":"10.1109\/TMTT.2013.2255884","article-title":"Microwave breast imaging with a monostatic radar-based system: A study of application to patients","volume":"61","author":"Fear","year":"2013","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_8","unstructured":"Pastorino, M., and Randazzo, A. (2018). Microwave Imaging Methods and Applications, Artech House."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"829","DOI":"10.1109\/TAP.2016.2633070","article-title":"Microwave imaging via distorted iterated virtual experiments","volume":"65","author":"Palmeri","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3010","DOI":"10.1109\/TGRS.2008.919273","article-title":"Imaging small PEC spheres by a linear \u03b4 approach","volume":"46","author":"Solimene","year":"2008","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"6482","DOI":"10.1109\/TGRS.2015.2441957","article-title":"Multiple extended target tracking for through-wall radars","volume":"53","author":"Gennarelli","year":"2015","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"3152","DOI":"10.1109\/TGRS.2010.2045387","article-title":"Multimonostatic shape reconstruction of two-dimensional dielectric cylinders by a Kirchhoff-based approach","volume":"48","author":"Brancaccio","year":"2010","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"4889","DOI":"10.1109\/TAP.2015.2444423","article-title":"Wavelet-Based Compressive Imaging of Sparse Targets","volume":"63","author":"Anselmi","year":"2015","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"945","DOI":"10.1364\/JOSAA.29.000945","article-title":"Electromagnetic imaging within the contrast-source formulation by means of the multiscaling inexact Newton method","volume":"29","author":"Oliveri","year":"2012","journal-title":"J. Opt. Soc. Am. A"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1186","DOI":"10.1109\/TGRS.2009.2032175","article-title":"On the solution of 2-D inverse scattering problems via source-type integral equations","volume":"48","author":"Isernia","year":"2010","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1109\/TMTT.2017.2697383","article-title":"Fast quantitative microwave imaging with scattered-power maps","volume":"66","author":"Shumakov","year":"2018","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"3878","DOI":"10.1109\/TAP.2014.2321144","article-title":"Shrinkage-thresholding enhanced Born iterative method for solving 2D inverse electromagnetic scattering problem","volume":"62","author":"Desmal","year":"2014","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"59","DOI":"10.2528\/PIERM08013002","article-title":"Electromagnetic Imaging Method Based on Time Reversal Processing Applied to Through-the-Wall Target Localization","volume":"1","author":"Maaref","year":"2008","journal-title":"Prog. Electromagn. Res."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"2528","DOI":"10.1109\/TBME.2011.2158544","article-title":"Microwave cancer imaging exploiting magnetic nanoparticles as contrast agent","volume":"58","author":"Bellizzi","year":"2011","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"75","DOI":"10.2528\/PIER09080604","article-title":"On quantitative microwave tomography of female breast","volume":"97","author":"Catapano","year":"2009","journal-title":"Prog. Electromagn. Res."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"2507","DOI":"10.1109\/TAP.2017.2679067","article-title":"Multiple-frequency DBIM-TwIST algorithm for microwave breast imaging","volume":"65","author":"Miao","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1195","DOI":"10.1109\/TBME.2014.2381270","article-title":"Wavelet-based regularization for robust microwave imaging in medical applications","volume":"62","author":"Scapaticci","year":"2015","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1109\/MAP.2017.2732225","article-title":"Electromagnetic tomography for detection, differentiation, and monitoring of brain stroke: A virtual data and human head phantom study","volume":"59","author":"Hopfer","year":"2017","journal-title":"IEEE Antennas Propag. Mag."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1109\/MAP.2017.2731199","article-title":"Numerical modeling and high-speed parallel computing: New perspectives on tomographic microwave imaging for brain stroke detection and monitoring","volume":"59","author":"Tournier","year":"2017","journal-title":"IEEE Antennas Propag. Mag."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"3668","DOI":"10.1109\/TMTT.2018.2849060","article-title":"Brain stroke microwave imaging by means of a Newton-conjugate-gradient method in Lp Banach spaces","volume":"66","author":"Bisio","year":"2018","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"909","DOI":"10.1049\/iet-map.2013.0054","article-title":"Microwave imaging for brain stroke detection using Born iterative method","volume":"7","author":"Ireland","year":"2013","journal-title":"Antennas Propag. IET Microw."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Bellizzi, G.G., Crocco, L., Cavagnaro, M., Farina, L., Lopresto, V., and Scapaticci, R. (2017, January 19\u201324). A full-wave numerical assessment of microwave tomography for monitoring cancer ablation. Proceedings of the 11th European Conference on Antennas and Propagation (EUCAP), Paris, France.","DOI":"10.23919\/EuCAP.2017.7928432"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1231","DOI":"10.1109\/TBME.2014.2367117","article-title":"A microwave imaging-based technique to localize an in-body RF source for biomedical applications","volume":"62","author":"Chandra","year":"2015","journal-title":"IEEE Trans. Biomed. Eng."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"3497","DOI":"10.1109\/TMTT.2018.2804905","article-title":"Microwave tomography for the inspection of wood materials: Imaging system and experimental results","volume":"66","author":"Boero","year":"2018","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1109\/7260.915627","article-title":"A confocal microwave imaging algorithm for breast cancer detection","volume":"11","author":"Li","year":"2001","journal-title":"IEEE Microw. Compon. Lett."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1109\/LAWP.2006.870360","article-title":"An inexact Newton method for microwave reconstruction of strong scatterers","volume":"5","author":"Bozza","year":"2006","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Lanini, M., Poretti, S., Salvade, A., and Monleone, R. (2015, January 7\u201311). Design of a slim wideband-antenna to overcome the strong reflection of the air-to-sample interface in microwave imaging. Proceedings of the 2015 International Conference on Electromagnetics in Advanced Applications, Turin, Italy.","DOI":"10.1109\/ICEAA.2015.7297269"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Whittow, W.G. (2016, January 10\u201315). 3D printing, inkjet printing and embroidery techniques for wearable antennas. Proceedings of the 10th European Conference on Antennas and Propagation (EuCAP2016), Davos, Switzerland.","DOI":"10.1109\/EuCAP.2016.7481266"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Bertero, M., and Boccacci, P. (1998). Introduction to Inverse Problems in Imaging, Institute of Physics Pub.","DOI":"10.1887\/0750304359"}],"container-title":["Journal of Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2313-433X\/4\/12\/139\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T15:32:10Z","timestamp":1760196730000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2313-433X\/4\/12\/139"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,11,26]]},"references-count":34,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2018,12]]}},"alternative-id":["jimaging4120139"],"URL":"https:\/\/doi.org\/10.3390\/jimaging4120139","relation":{},"ISSN":["2313-433X"],"issn-type":[{"value":"2313-433X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,11,26]]}}}