TY  - JOUR
AV  - none
N2  - A low-profile Multiple Input Multiple Output (MIMO) antenna showing dual polarization, low mutual coupling, and acceptable diversity gain is presented by this paper. The antenna introduces the requirements of fifth generation (5G) and the satellite communications. A horizontally (4.8â??31 GHz) and vertically polarized (7.6â??37 GHz) modified antipodal Vivaldi antennas are simulated, fabricated, and integrated, and then their characteristics are examined. An ultra-wideband (UWB) at working bandwidths of 3.7â??3.85 GHz and 5â??40 GHz are achieved. Low mutual coupling of less than â??22 dB is achieved after loading the antenna with cross-curves, staircase meander line, and integration of the metamaterial elements. The antennas are designed on a denim textile substrate with εr = 1.4 and h = 0.5 mm. A conductive textile called ShieldIt is utilized as conductor with conductivity of 1.8 Ã? 104 . After optimizing the proposed UWB-MIMO antennaâ??s characteristics, it is increased to four elements positioned at the four corners of a denim textile substrate to be employed as a UWB-MIMO antenna for handset communications, 5G, Ka and Ku band, and satellite communications (X-band). The proposed eight port UWB-MIMO antenna has a maximum gain of 10.7 dBi, 98 radiation efficiency, less than 0.01 ECC, and acceptable diversity gain. Afterwards, the eight-ports antenna performance is examined on a simulated real voxel hand and chest. Then, it is evaluated and compared on physical hand and chest of body. Evidently, the simulated and measured results show good agreement between them. The proposed UWB-MIMO antenna offers a compact and flexible design, which is suitably wearable for 5G and satellite communications applications. © 2021 by the authorsLicensee MDPI, Basel, Switzerland.
N1  - cited By 8
IS  - 12
KW  - 5G mobile communication systems; Metamaterial antennas; Metamaterials; Microwave antennas; MIMO systems; Satellite antennas; Satellites; Textiles; Ultra-wideband (UWB); Wearable antennas
KW  -  Diversity gain; Isolation; Multiple input multiple output antennas; Mutual coupling; Satellite communications; Textile substrates; Ultra-wideband antenna; Ultrawide band; Vivaldi antennas; Wideband antenna
KW  -  Satellite communication systems
ID  - scholars14147
TI  - Wearable metamaterial dual-polarized high isolation uwb mimo vivaldi antenna for 5g and satellite communications
Y1  - 2021///
SN  - 2072666X
PB  - MDPI
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121602469&doi=10.3390%2fmi12121559&partnerID=40&md5=5c7b7ff7676ae3e19241f21d71d70d73
JF  - Micromachines
A1  - Alhawari, A.R.H.
A1  - Saeidi, T.
A1  - Almawgani, A.H.M.
A1  - Hindi, A.T.
A1  - Alghamdi, H.
A1  - Alsuwian, T.
A1  - Awwad, S.A.B.
A1  - Imran, M.A.
VL  - 12
ER  -