{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T09:06:43Z","timestamp":1777799203543,"version":"3.51.4"},"reference-count":24,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2023,5,4]],"date-time":"2023-05-04T00:00:00Z","timestamp":1683158400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European University of Atlantics"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, a novel ultra-wideband UWB antenna element with triple-band notches is proposed. The proposed UWB radiator element operates from 2.03 GHz up to 15.04 GHz with triple rejected bands at the WiMAX band (3.28\u20133.8 GHz), WLAN band (5.05\u20135.9 GHz), and X-band (7.78\u20138.51 GHz). In addition, the radiator supports the Bluetooth band (2.4\u20132.483 GHz). Three different techniques were utilized to obtain the triple-band notches. An alpha-shaped coupled line with a stub-loaded resonator (SLR) band stop filter was inserted along the main feeding line before the radiator to obtain a WiMAX band notch characteristic. Two identical U-shaped slots were etched on the proposed UWB radiator to achieve WLAN band notch characteristics with a very high degree of selectivity. Two identical metallic frames of an octagon-shaped electromagnetic band gap structure (EBG) were placed along the main feeding line to achieve the notch characteristic with X-band satellite communication with high sharpness edges. A novel UWB multiple-input multiple-output (MIMO) radiator is proposed. The proposed UWB-MIMO radiator was fabricated on FR-4 substrate material and measured. The isolation between every two adjacent ports was below \u221220 dB over the FCC-UWB spectrum and the Bluetooth band for the four MIMO antennas. The envelope correlation coefficient (ECC) between the proposed antennas in MIMO does not exceed 0.05. The diversity gains (DG) for all the radiators are greater than 9.98 dB.<\/jats:p>","DOI":"10.3390\/s23094475","type":"journal-article","created":{"date-parts":[[2023,5,5]],"date-time":"2023-05-05T02:56:51Z","timestamp":1683255411000},"page":"4475","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Triple-Band Notched Ultra-Wideband Microstrip MIMO Antenna with Bluetooth Band"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1171-8777","authenticated-orcid":false,"given":"Mohamed S.","family":"El-Gendy","sequence":"first","affiliation":[{"name":"Microstrip Department, Electronics Research Institute, Cairo 11843, Egypt"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4003-2851","authenticated-orcid":false,"given":"Mohamed Mamdouh M.","family":"Ali","sequence":"additional","affiliation":[{"name":"Electrical Engineering Department, Faculty of Engineering, Assiut University, Assiut 71516, Egypt"}]},{"given":"Ernesto Bautista","family":"Thompson","sequence":"additional","affiliation":[{"name":"Higher Polytechnic School, Universidad Europea del Atl\u00e1ntico, Isabel Toress 21, 39011 Santander, Spain"},{"name":"Department of Project Management, Universidad Internacional Iberoamericana, Campeche 24560, Mexico"},{"name":"Project Management, Universidad Internacional Iberoamericana, Arecibo, PR 00613, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8271-6496","authenticated-orcid":false,"given":"Imran","family":"Ashraf","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2390808","DOI":"10.1155\/2017\/2390808","article-title":"Wideband and UWB antennas for wireless applications: A comprehensive review","volume":"2017","author":"Cicchetti","year":"2017","journal-title":"Int. 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