TY - JOUR N1 - cited By 12 N2 - The increasing needs of free licensed frequency bands like Industrial, Scientific, and Medical (ISM), Wireless Local Area Network (WLAN), and 5G for underwater communications required more bandwidth (BW) with higher data transferring rate. Microwaves produce a higher transferring rate of data, and their associated devices are smaller in comparison with sonar and ultrasonic. Thus, transceivers should have broad BW to cover more of a frequency band, especially from ultra-wideband (UWB) systems, which show potential outcomes. However, previous designs of similar work for underwater communications were very complicated, uneasy to fabricate, and large. Therefore, to overcome these shortcomings, a novel compact elliptical UWB antenna is designed to resonate from 1.3 to 7.2 GHz. It is invented from a polytetrafluoroethylene (PTFE) layer with a dielectric constant of 2.55 mm and a thickness of 0.8 mm. The proposed antenna shows higher gain and radiation efficiency and stability throughout the working band when compared to recent similarly reported designs, even at a smaller size. The characteristics of the functioning antenna are investigated through fluid mediums of fresh-water, seawater, distilled water, and Debye model water. Later, its channel capacity, bit rate error, and data rate are evaluated. The results demonstrated that the antenna offers compact, easier fabrication with better UWB characteristics for underwater 5G communications. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. IS - 4 KW - Bit error rate; Channel capacity; Marine communication; Microwave antennas; Radio transceivers; Ultra-wideband (UWB); Underwater acoustic communication; Wireless local area networks (WLAN) KW - Data transferring; Licensed frequency; Polytetrafluoroethylene (PTFE); Potential outcomes; Radiation efficiency; Ultrawideband systems; Underwater communication; Wireless communications KW - 5G mobile communication systems ID - scholars15047 TI - Compact elliptical uwb antenna for underwater wireless communications AV - none UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104285611&doi=10.3390%2fmi12040411&partnerID=40&md5=6befdfa11069d304717aab75beaddc83 A1 - Alhawari, A.R.H. A1 - Majeed, S.F. A1 - Saeidi, T. A1 - Mumtaz, S. A1 - Alghamdi, H. A1 - Hindi, A.T. A1 - Almawgani, A.H.M. A1 - Imran, M.A. A1 - Abbasi, Q.H. JF - Micromachines VL - 12 Y1 - 2021/// SN - 2072666X PB - MDPI AG ER -