{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T08:08:19Z","timestamp":1778314099146,"version":"3.51.4"},"reference-count":20,"publisher":"Wiley","license":[{"start":{"date-parts":[[2022,9,12]],"date-time":"2022-09-12T00:00:00Z","timestamp":1662940800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Electrical and Computer Engineering"],"published-print":{"date-parts":[[2022,9,12]]},"abstract":"Miniature devices are becoming increasingly demanded as fifth-generation (5G) technology is been deployed. This has necessitated the need to miniaturize all the various components of 5G enabling systems. It is a well-known fact that without the antenna, there is no wireless communication as it forms the link between the space and the wired network. Hence, the miniaturization of the antenna will contribute to the miniaturization of the entire wireless system. In this work, a miniature dual-band ultracompact antenna based on an opened-B-shaped (OBS) patch, a partial ground, and a ground protruding stub is presented. The antenna size is \n \n 0.14<\/a:mn>\n \u2009<\/a:mtext>\n \u00d7<\/a:mo>\n 0.07<\/a:mn>\n \n \n \u03bb<\/a:mi>\n <\/a:mrow>\n \n o<\/a:mi>\n <\/a:mrow>\n <\/a:msub>\n \n \n \n \n \u03bb<\/a:mi>\n <\/a:mrow>\n \n o<\/a:mi>\n <\/a:mrow>\n <\/a:msub>\n @<\/a:mo>\n 1.85<\/a:mn>\n G<\/a:mi>\n H<\/a:mi>\n z<\/a:mi>\n <\/a:mrow>\n <\/a:mfenced>\n <\/a:math>\n <\/jats:inline-formula>. The proposed antenna is etched on a rogers (RT5880) substrate and fed with a 50\u2009\u2126 asymmetric microstrip feedline. The proposed OBS antenna is fabricated and measured. In addition, the equivalent circuit of the proposed OBS antenna is designed and analyzed using AWR\u00ae. The antenna operates at a center frequency of 1.85\u2009GHz and 5.89\u2009GHz with an impedance bandwidth of 10.41% and 36.29%, respectively, which means that the first and second bands are narrow and wide bands, respectively. Furthermore, the mean peak gain of the proposed OBS antenna at lower and upper bands are 4.1\u2009dB and 3.95\u2009dB, respectively. More so, the radiation pattern antenna shows a quasiomnidirectional at E-plane and omnidirectional at H-plane. There is a good agreement between simulated and measured results. Therefore, the proposed OBS antenna is a suitable candidate for future portable mobile devices.<\/jats:p>","DOI":"10.1155\/2022\/5455915","type":"journal-article","created":{"date-parts":[[2022,9,12]],"date-time":"2022-09-12T20:35:06Z","timestamp":1663014906000},"page":"1-10","source":"Crossref","is-referenced-by-count":2,"title":["Miniaturized Dual-Band Antenna for GSM1800, WLAN, and Sub-6\u2009GHz 5G Portable Mobile Devices"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5618-9127","authenticated-orcid":true,"given":"Jeremiah O.","family":"Abolade","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, Pan African University Institute of Basic Sciences Technology and Innovation (PAUSTI), Nairobi, Kenya"},{"name":"Department of Electrical and Electronic Engineering, Bowen University, Iwo, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dominic B. O.","family":"Konditi","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, The Technical University of Kenya, Nairobi, Kenya"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3361-2006","authenticated-orcid":true,"given":"Pierre M.","family":"Mpele","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Pan African University Institute of Basic Sciences Technology and Innovation (PAUSTI), Nairobi, Kenya"},{"name":"Department of Electrical and Electronics Engineering, Marien Ngouabi University, Brazzaville, Congo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abidemi M.","family":"Orimogunje","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Engineering, Redeemer\u2019s University, Ede, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan P.","family":"Oguntoye","sequence":"additional","affiliation":[{"name":"Department of Computer Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aeue.2019.02.010"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/CONECCT50063.2020.9198480"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/APUSNCURSINRSM.2019.8889071"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.15866\/irecap.v11i3.20379"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1049\/iet-map.2019.0849"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3019663"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2021.e06247"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2017.2647945"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2015.2513099"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1002\/mmce.22880"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3033502"},{"key":"12","article-title":"Narrowband versus wideband","author":"Jem Engineering","year":"2021"},{"key":"13","doi-asserted-by":"crossref","DOI":"10.1002\/9780470772911","volume-title":"Antennas: From Theory to Practice","author":"Y. 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