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2014-2020 Program","award":["6721001"],"award-info":[{"award-number":["6721001"]}]},{"name":"National Natural Science Foundation of China","award":["2017BHFZKH"],"award-info":[{"award-number":["2017BHFZKH"]}]},{"name":"National Natural Science Foundation of China","award":["SCN_00166"],"award-info":[{"award-number":["SCN_00166"]}]},{"name":"National Natural Science Foundation of China","award":["E64I19000560001"],"award-info":[{"award-number":["E64I19000560001"]}]},{"name":"National Natural Science Foundation of China","award":["E44G14000040008"],"award-info":[{"award-number":["E44G14000040008"]}]},{"name":"National Natural Science Foundation of China","award":["ARS01_00964"],"award-info":[{"award-number":["ARS01_00964"]}]},{"name":"National Natural Science Foundation of China","award":["6721001"],"award-info":[{"award-number":["6721001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The design of a wide-band wide-beam circularly-polarized slot-coupled (WWCS) radiating element for wide-angle scanning arrays (WASAs) is addressed. The WWCS radiator exploits a simple geometry composed of a primary (driven) and a secondary (passive) element to generate wide-beam patterns with rotational symmetry and high polarization purity. The synthesis was carried out by means of a customized version of the System-by-Design (SbD) method to derive a WWCS radiator with circular polarization (CP) and wide-band impedance matching. The results of the numerical assessment, along with a tolerance analysis, confirm that the synthesized WWCS radiating element is a competitive solution for the implementation of large WASAs. More specifically, a representative design working at f0=2.45 [GHz] is shown having fractional bandwidth FBW\u224315%, half-power beam-width HPBWf0\u2243180 [deg] in all elevation planes, and high polarization purity with broadside axial ratio ARf0=3.2 [dB] and cross-polar discrimination XPDf0=15 [dB]. Finally, the experimental assessment, carried out on a PCB-manufactured prototype, verifies the wide-band and wide-beam features of the designed WWCS radiator.<\/jats:p>","DOI":"10.3390\/s23031123","type":"journal-article","created":{"date-parts":[[2023,1,19]],"date-time":"2023-01-19T01:33:51Z","timestamp":1674092031000},"page":"1123","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Wide-Band Wide-Beam Circularly-Polarized Slot-Coupled Antenna for Wide-Angle Beam Scanning Arrays"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6948-8636","authenticated-orcid":false,"given":"Marco","family":"Salucci","sequence":"first","affiliation":[{"name":"ELEDIA Research Center, DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA@UniTN-University of Trento, Via Mesiano 77, 38123 Trento, Italy"},{"name":"ELEDIA Research Unit, CNIT\u2014University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5238-358X","authenticated-orcid":false,"given":"Giacomo","family":"Oliveri","sequence":"additional","affiliation":[{"name":"ELEDIA Research Center, DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA@UniTN-University of Trento, Via Mesiano 77, 38123 Trento, Italy"},{"name":"ELEDIA Research Unit, CNIT\u2014University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Abdul","family":"Hannan","sequence":"additional","affiliation":[{"name":"ELEDIA Research Center, DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA@UniTN-University of Trento, Via Mesiano 77, 38123 Trento, Italy"},{"name":"ELEDIA Research Unit, CNIT\u2014University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renzo","family":"Azaro","sequence":"additional","affiliation":[{"name":"ELEDIA Research Center, DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA@UniTN-University of Trento, Via Mesiano 77, 38123 Trento, Italy"},{"name":"ELEDIA Research Unit, CNIT\u2014University of Trento, Via Sommarive 9, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8429-8937","authenticated-orcid":false,"given":"Andrea","family":"Massa","sequence":"additional","affiliation":[{"name":"ELEDIA Research Center, DICAM-Department of Civil, Environmental, and Mechanical Engineering, ELEDIA@UniTN-University of Trento, Via Mesiano 77, 38123 Trento, Italy"},{"name":"ELEDIA Research Unit, CNIT\u2014University of Trento, Via Sommarive 9, 38123 Trento, Italy"},{"name":"ELEDIA Research Center, ELEDIA@UESTC-UESTC, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"ELEDIA Research Center, ELEDIA@TSINGHUA-Tsinghua University, 30 Shuangqing Rd, Beijing 100084, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,18]]},"reference":[{"key":"ref_1","unstructured":"Mailloux, R.J. 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C"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/3\/1123\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:09:24Z","timestamp":1760119764000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/3\/1123"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1,18]]},"references-count":40,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2023,2]]}},"alternative-id":["s23031123"],"URL":"https:\/\/doi.org\/10.3390\/s23031123","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,1,18]]}}}