{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T16:06:39Z","timestamp":1784736399118,"version":"3.55.0"},"reference-count":40,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2023,4,30]],"date-time":"2023-04-30T00:00:00Z","timestamp":1682812800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62071256"],"award-info":[{"award-number":["62071256"]}]},{"name":"National Natural Science Foundation of China","award":["62001081"],"award-info":[{"award-number":["62001081"]}]},{"name":"National Natural Science Foundation of China","award":["BE2021013-1"],"award-info":[{"award-number":["BE2021013-1"]}]},{"name":"Key Research and Development Program of Jiangsu Province of China","award":["62071256"],"award-info":[{"award-number":["62071256"]}]},{"name":"Key Research and Development Program of Jiangsu Province of China","award":["62001081"],"award-info":[{"award-number":["62001081"]}]},{"name":"Key Research and Development Program of Jiangsu Province of China","award":["BE2021013-1"],"award-info":[{"award-number":["BE2021013-1"]}]},{"name":"State Key Laboratory of Millimeter Waves Nanjing","award":["62071256"],"award-info":[{"award-number":["62071256"]}]},{"name":"State Key Laboratory of Millimeter Waves Nanjing","award":["62001081"],"award-info":[{"award-number":["62001081"]}]},{"name":"State Key Laboratory of Millimeter Waves Nanjing","award":["BE2021013-1"],"award-info":[{"award-number":["BE2021013-1"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this article, a microwave (MW)\/millimeter wave (MMW) aperture-sharing antenna is proposed. The antenna is constructed using two orthogonal columns of grounded vias from a 3.5 GHz slot-loaded half-mode substrate-integrated waveguide (HMSIW) antenna. These vias are reused to create two sets of 1 \u00d7 4 MMW substrate-integrated dielectric resonator antenna (SIDRA) arrays. With this proposed partial structure reuse strategy, the MW antenna and MMW arrays can be integrated in a shared-aperture manner, improving space utilization and enabling dual-polarized beam steering capability in the MMW band, which is highly desirable for multiple-input multipleoutput (MIMO) applications. The integrated antenna prototype was manufactured and measured for verification. The 3.5 GHz antenna has a relative bandwidth of 3.4% (3.44\u20133.56 GHz) with a peak antenna gain of 5.34 dBi, and the 28 GHz antenna arrays cover the frequency range of 26.5\u201329.8 GHz (11.8%) and attain a measured peak antenna gain of 11.0 dBi. Specifically, the 28 GHz antenna arrays can realize dual-polarization and \u00b145\u00b0 beam steering capability. The dual-band antenna has a very compact structure, and it is applicable for 5G mobile communication terminals.<\/jats:p>","DOI":"10.3390\/s23094400","type":"journal-article","created":{"date-parts":[[2023,5,1]],"date-time":"2023-05-01T12:12:11Z","timestamp":1682943131000},"page":"4400","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["A Compact Aperture-Sharing Sub-6 GHz\/Millimeter-Wave Dual-Band Antenna"],"prefix":"10.3390","volume":"23","author":[{"given":"Qinghu","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Information Science and Technology, Nantong University, Nantong 226019, China"},{"name":"The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bitian","family":"Chai","sequence":"additional","affiliation":[{"name":"School of Information Science and Technology, Nantong University, Nantong 226019, China"},{"name":"The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianxin","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Information Science and Technology, Nantong University, Nantong 226019, China"},{"name":"The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0492-5508","authenticated-orcid":false,"given":"Wenwen","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Information Science and Technology, Nantong University, Nantong 226019, China"},{"name":"The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2025","DOI":"10.1109\/LAWP.2022.3189209","article-title":"A microstrip dual-split-ring antenna array for 5G millimeter-wave dual-band applications","volume":"21","author":"Huang","year":"2022","journal-title":"IEEE Antennas Wirel. 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