{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,22]],"date-time":"2026-03-22T06:13:36Z","timestamp":1774160016265,"version":"3.50.1"},"reference-count":42,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T00:00:00Z","timestamp":1640563200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015688","name":"\u00d3buda University","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/501100015688","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>This research article reports a compact fractal 4 \u00d7 4 UWB extended bandwidth MIMO antenna with physical dimensions of 44 \u00d7 44 mm2 for high-speed wireless applications. The reported antenna comprises four fractal radiating elements that are symmetrical and placed orthogonal to each other with a respective rectangular ground printed on the opposite plane. A higher isolation is achieved between the radiating elements by the placement of a fractal patch orthogonally and no separate decoupling structure is required. The antenna offers a \u221210 dB transmission capacity of 2.84\u201315.88 GHz. The fractal radiating element, which is embedded by an inverted T-type stub placed within a rectangular slot and an etched rotated C-type slot, provides band-stop filters for WiMAX (Worldwide inter-operability for Microwave Access) and WLAN (wireless local area network)-interfering bands. The key parameters of diversity performance are compared by simulation and measurement (fabricated prototype) of ECC (envelope correlation coefficient), DG (directive gain), TARC (total active reflection coefficient) and CCL (channel capacity loss). The antenna offers an omnidirectional radiation pattern with an average gain of 3.52 dBi.<\/jats:p>","DOI":"10.3390\/sym14010029","type":"journal-article","created":{"date-parts":[[2021,12,28]],"date-time":"2021-12-28T01:20:43Z","timestamp":1640654443000},"page":"29","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["A Wider Impedance Bandwidth Dual Filter Symmetrical MIMO Antenna for High-Speed Wideband Wireless Applications"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1539-2938","authenticated-orcid":false,"given":"Manish","family":"Sharma","sequence":"first","affiliation":[{"name":"Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prem Chand","family":"Vashist","sequence":"additional","affiliation":[{"name":"Department of Information Technology, G.L. Bajaj Institute of Technology and Management, Greater Noida 201308, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6925-598X","authenticated-orcid":false,"given":"Ibrahim","family":"Alsukayti","sequence":"additional","affiliation":[{"name":"Department of Computer Science, College of Computer, Qassim University, Buraydah 51452, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7878-363X","authenticated-orcid":false,"given":"Nitin","family":"Goyal","sequence":"additional","affiliation":[{"name":"Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Divya","family":"Anand","sequence":"additional","affiliation":[{"name":"School of Computer Science and Engineering, Lovely Professional University, Phagwara, Punjab 144411, India"},{"name":"Higher Polytechnic School, Universidad Europea del Atl\u00e1ntico, C\/Isabel Torres 21, 39011 Santander, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4842-0613","authenticated-orcid":false,"given":"Amir H.","family":"Mosavi","sequence":"additional","affiliation":[{"name":"Institute of Software Design and Development, Obuda University, 1034 Budapest, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1515\/freq-2016-0065","article-title":"Design of Compact Flower Shape Dual Notched-Band Monopole Antenna for Extended UWB Wireless Applications","volume":"70","author":"Sharma","year":"2016","journal-title":"Frequenz"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"4129","DOI":"10.1007\/s11277-017-4716-z","article-title":"Compact UWB Antenna with High Rejection Triple Band-Notch Characteristics for Wireless Applications","volume":"97","author":"Sharma","year":"2017","journal-title":"Wirel. 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