A crossed-polarized four port MIMO antenna for UWB communication.

Autor: Jabire AH; Department of Electrical and Electronics Engineering, Taraba State University, Jalingo, Nigeria.; Department of Electrical and Communication Engineering, UAE University, Al Ain, United Arab Emirates., Sani S; Department of Electrical Engineering, Ahmadu Bello University, Zaria, Kaduna State, Nigeria., Saminu S; Department of Biomedical Engineering, University of Ilorin, Ilorin, Nigeria.; State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China., Adamu MJ; School of Microelectronics, Tianjin University, Tianjin, China., Hussein MI; Department of Electrical and Communication Engineering, UAE University, Al Ain, United Arab Emirates.
Jazyk: angličtina
Zdroj: Heliyon [Heliyon] 2022 Dec 29; Vol. 9 (1), pp. e12710. Date of Electronic Publication: 2022 Dec 29 (Print Publication: 2023).
DOI: 10.1016/j.heliyon.2022.e12710
Abstrakt: This paper presents a compact, crossed-polarized, ultra-wideband (UWB) four-ports multiple-input-multiple-output (MIMO) printed antenna. The proposed antenna is constructed from four microstrip circular patch elements fed by a 50-Ω microstrip line. Two metamaterial cell elements, in the form of a rectangular concentric double split ring resonator (SRR), are placed at the upper plane of the substrates for bandwidth improvement and isolation enhancement. The ultra-wideband frequency response is achieved using a defective ground plane. Surface current flow between the antenna's four elements is limited to ensure maximum isolation. The four-port MIMO system is designed with orthogonal antenna elements orientation on an FR4 substrate with a loss tangent of 0.02 and an overall size of 30 mm × 30 mm × 1.6 mm. Such orientation resulted in less than -17dB port-to-port isolation and an impedance bandwidth of 148% (3.1-12 GHz). The proposed UWB-MIMO antenna achieved a maximum realized gain of 6.2dBi with an efficiency of 87%. The measured and simulated results are in good agreement over the operating frequency band (3.1-12 GHz). The results also provide overall good diversity performance with the TARC < -10 dB, ECC < 0.001, DG > 9.9, MEG < -3 dB and CCL <0.1. The proposed antenna is well-suited for applications in WLAN, WIMAX and GPRs.
Competing Interests: The authors declare no conflict of competing interest.
(© 2022 The Authors.)
Databáze: MEDLINE