{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T01:05:24Z","timestamp":1781226324383,"version":"3.54.1"},"reference-count":22,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2022,7,16]],"date-time":"2022-07-16T00:00:00Z","timestamp":1657929600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"MINISTERIO DE CIENCIA, INNOVACI\u00d3N Y UNIVERSIDADES","award":["PID2019-107885GB-C31\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["PID2019-107885GB-C31\/AEI\/10.13039\/501100011033"]}]},{"name":"MINISTERIO DE CIENCIA, INNOVACI\u00d3N Y UNIVERSIDADES","award":["DI-2020"],"award-info":[{"award-number":["DI-2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A 3D-printed phased array consisting of four H-Sectorial horn antennas of 200 g weight with an ultra-wideband rectangular-waveguide-to-microstrip-line transition operating over the whole LMDS and K bands (24.25\u201329.5 GHz) is presented. The transition is based on exciting three overlapped transversal patches that radiate into the waveguide. The transition provides very low insertion losses, ranging from 0.30 dB to 0.67 dB over the whole band of operation (23.5\u201330.4 GHz). The measured fractional bandwidth of the phased array including the transition was 20.8% (24.75\u201330.3 GHz). The antenna was measured for six different scanning angles corresponding to six different progressive phases \u03b1, ranging from 0\u00b0 to 140\u00b0 at the central frequency band of operation of 26.5 GHz. The maximum gain was found in the broadside direction \u03b1 = 0\u00b0, with 15.2 dB and efficiency \u03b7 = 78.5%, while the minimum was found for \u03b1 = 140\u00b0, with 13.7 dB and \u03b7 = 91.2%.<\/jats:p>","DOI":"10.3390\/s22145329","type":"journal-article","created":{"date-parts":[[2022,7,18]],"date-time":"2022-07-18T01:53:22Z","timestamp":1658109202000},"page":"5329","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Microstrip-Fed 3D-Printed H-Sectorial Horn Phased Array"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4285-0148","authenticated-orcid":false,"given":"Ivan","family":"Zhou","sequence":"first","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Llu\u00eds","family":"Pradell","sequence":"additional","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1333-7142","authenticated-orcid":false,"given":"Jos\u00e9 Maria","family":"Villegas","sequence":"additional","affiliation":[{"name":"Department of Electronics and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Neus","family":"Vidal","sequence":"additional","affiliation":[{"name":"Department of Electronics and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miquel","family":"Albert","sequence":"additional","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0547-901X","authenticated-orcid":false,"given":"Llu\u00eds","family":"Jofre","sequence":"additional","affiliation":[{"name":"School of Telecommunication Engineering, Universitat Polit\u00e8cnica de Catalunya, 08034 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"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":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1017","DOI":"10.1109\/LAWP.2020.2986924","article-title":"Three-Dimensional Beamsteering Low-Complexity Reconfigurable Multilevel Antenna","volume":"19","author":"Zhou","year":"2020","journal-title":"IEEE Antennas Wirel. 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