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Antenna system is specifically designed to target lower 5th generation operating bands ranging from 2\u2009GHz to 12\u2009GHz. This band also covers the IEEE 802.11 a\/b\/g\/n\/ac. The antenna array geometry has been simulated using CST MWS. The design is extremely miniaturized with total structure size of 13 \u00d7 25 \u00d7 0.254\u2009mm<jats:sup>3<\/jats:sup>. The simulated and measured results have been presented. Measured and simulated return loss values for designed antenna are less than \u221210\u2009dB over the operating band and lowest values of \u221235\u2009dB and \u221232.5\u2009dB can been seen at 5.2\u2009GHz and 9.2\u2009GHz, respectively, whereas at the center frequency the return loss is \u221225.2\u2009dB. The mutual coupling between both elements is less than \u221220\u2009dB over the transmission bandwidth. Simulated and measured radiation patterns in E and H planes at center frequency show nearly isotropic far fields. The maximum gain is measured as 4.8\u2009dB. Promising results of Envelope Correlation Coefficient and gain diversity of the design have been achieved. Simulated and measured results are found in good agreement. The fractional bandwidth of antenna is measured as 143.2% which satisfies its ultra\u2010wide band response.<\/jats:p>","DOI":"10.1155\/2018\/2396873","type":"journal-article","created":{"date-parts":[[2018,6,4]],"date-time":"2018-06-04T23:30:43Z","timestamp":1528155043000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Compact Ultra\u2010Wide Band MIMO Antenna System for Lower 5G Bands"],"prefix":"10.1155","volume":"2018","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0581-7178","authenticated-orcid":false,"given":"Haitham","family":"AL-Saif","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4596-0550","authenticated-orcid":false,"given":"Muhammad","family":"Usman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Muhammad Tajammal","family":"Chughtai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6020-2259","authenticated-orcid":false,"given":"Jamal","family":"Nasir","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,6,4]]},"reference":[{"key":"e_1_2_8_1_2","first-page":"97","article-title":"From LTE-advanced to 5G: Mobile access system in progress","volume":"52","author":"Dateki T.","year":"2016","journal-title":"Fujitsu scientific & technical journal"},{"key":"e_1_2_8_2_2","unstructured":"W. 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