A compact, four-element planar MIMO (Multiple Input, Multiple Output) antenna that operates in an ultra-wideband is presented for diversity application. The orthogonal position of the unit cells replicates the single antenna thrice, thereby decreasing mutual coupling. A UWB MIMO antenna measuring 35 × 35 × 1.6 mm3 is built using a microstrip line (50 Ω impedance) on an FR4 substrate having a thickness of 1.6 mm. The ground plane and radiator of this antenna are adjusted in several ways to bring it within its operating constraints between the frequencies of 3.1 GHz and 10.6 GHz. This technique makes the antenna small and covers the entire ultra-wideband (UWB) frequency range. The NI USRP was used to test the proposed MIMO antenna to determine its real-time performance. Based on the computed results, we conclude that this proposed antenna has outstanding characteristics in terms of performance and is suitable for wireless ultra-wideband indoor communication and diversity utilization with a small size.

Department of Control Systems and Instrumentation Faculty of Mechanical Engineering VSB Technical University of Ostrava 17 Listopadu 2172 15 70800 Ostrava Czech Republic

Department of Electronics and Communication Faculty of Engineering and Technology SRM Institute of Science and Technology Kattankulathur 603203 India

Department of Electronics and Communication Vel Tech Rangarajan Dr Sagunthala R and D Institute of Science and Technology Chennai 600062 India

Zobrazit více v PubMed

Chen Z.N., Ammann M.J., Qing X., Wu X.H., See T.S.P., Cai A. Planar antennas. IEEE Microw. Mag. 2006;7:63–73. doi: 10.1109/MW-M.2006.250315. DOI

Schantz H.G. A brief history of UWB antennas. IEEE Aerosp. Electron. Syst. Mag. 2004;19:22–26. doi: 10.1109/MAES.2004.1301770. DOI

Li H., Xiong J., Ying Z., He S.L. Compact and low profile co-located MIMO antenna structure with polarisation diversity and high port isolation. Electron. Lett. 2010;46:108. doi: 10.1049/el.2010.2463. DOI

Liu L., Cheung S.W., Yuk T.I. Compact MIMO Antenna for Portable Devices in UWB Applications. IEEE Trans. Antennas Propag. 2013;61:4257–4264. doi: 10.1109/TAP.2013.2263277. DOI

Tang T.-C., Lin K.-H. An ultrawideband MIMO antenna with dual band-notched function. IEEE Antennas Wirel. Propag. Lett. 2014;13:1076–1079. doi: 10.1109/LAWP.2014.2329496. DOI

Wang L., Du Z., Yang H., Ma R., Zhao Y., Cui X., Xi X. Compact UWB MIMO antenna with high isolation using fence-type decoupling structure. IEEE Antennas Wirel. Propag. Lett. 2019;18:1641–1645. doi: 10.1109/LAWP.2019.2925857. DOI

Wu Y., Ding K., Zhang B., Li J., Wu D., Wang K. Design of a compact UWB MIMO antenna without decoupling structure. Int. J. Antennas Propag. 2018;2018:9685029. doi: 10.1155/2018/9685029. DOI

Tiwari R.N., Singh P., Kanaujia B.K. A compact UWB MIMO antenna with neutralization line for WLAN/ISM/mobile applications. Int. J. RF Microw. Comput.-Aid. Eng. 2019;29:e21907.

Basaran S.C., Olgun U., Sertel K. Multiband monopole antenna with complementary split-ring resonators for WLAN and WiMAX applications. Electron. Lett. 2013;49:636–638. doi: 10.1049/el.2013.0357. DOI

Yadav D., Abegaonkar M.P., Koul S.K., Tiwari V.N., Bhatnagar D. Two element band-notched uwb Mimo antenna with high and uniform isolation. Prog. Electromagn. Res. M. 2018;63:119–129. doi: 10.2528/PIERM17091106. DOI

Chithradevi R., Sreeja B.S. A compat UWB MIMO antenna with high isolation and low correlation for wireless applications; Proceedings of the 2017 IEEE International Conference on Antenna Innovations & Modern Technologies for Ground, Aircraft and Satellite Applications (iAIM); Bangalore, India. 24–26 November 2017.

Wu A., Zhao M., Zhang P., Zhang Z. A compact four-port MIMO antenna for UWB applications. Sensors. 2022;22:5788. doi: 10.3390/s22155788. PubMed DOI PMC

Bilal M., Naqvi S.I., Hussain N., Amin Y., Kim N. High-isolation MIMO antenna for 5G millimeter-Wave communication systems. Electronics. 2022;11:962. doi: 10.3390/electronics11060962. DOI

Fat S.Y.A., Hamad E.K.I., Swelam W., Allam A.M., Mohamed H.A.E. Design of compact 4-port Mimo antenna based on minkowski fractal shape dgs for 5g applications. Prog. Electromagn. Res. C Pier C. 2021;113:123–136.

Kumar A. Compact 4x4 CPW-fed MIMO antenna with WI-fi and WLAN notch for UWB applications. Radioelectron. Commun. Syst. 2021;64:92–98. doi: 10.3103/S0735272721020047. DOI

Hussain M., Ali E.M., Jarchavi S.M.R., Zaidi A., Najam A.I., Alotaibi A.A., Althobaiti A., Ghoneim S.S.M. Design and characterization of compact broadband antenna and its MIMO configuration for 28 GHz 5G applications. Electronics. 2022;11:523. doi: 10.3390/electronics11040523. DOI

Li M.-Y., Ban Y.-L., Xu Z.-Q., Guo J., Yu Z.-F. Tri-Polarized 12-Antenna MIMO Array for Future 5G Smartphone Applications. IEEE Access. 2018;6:6160–6170. doi: 10.1109/ACCESS.2017.2781705. DOI

Li S.J., Li Y.B., Li H., Wang Z.X., Zhang C., Guo Z.X., Li R.Q., Cao X.Y., Cheng Q., Cui T.J. A thin self-feeding Janus metasurface for manipulating incident waves and emitting radiation waves simultaneously. Ann. Phys. 2020;532:2000020. doi: 10.1002/andp.202000020. DOI

Kolangiammal S., Balaji L., Vairavel G. A compact planar monopole UWB MIMO antenna design with increased isolation for diversity applications. Appl. Comput. Electromagn. Soc. J. 2022;37:458–465. doi: 10.13052/2022.ACES.J.370411. DOI

Kolangiammal S., Balaji L., Mahdal M. Design of compact planar monopole UWB MIMO antenna with four orthogonal elements and tapered fed configuration for wireless diversity applications. Electronics. 2022;11:3087. doi: 10.3390/electronics11193087. DOI

Chandel R., Gautam A.K., Rambabu K. Tapered fed compact UWB MIMO-diversity antenna with dual band-notched characteristics. IEEE Trans. Antennas Propag. 2018;66:1677–1684. doi: 10.1109/TAP.2018.2803134. DOI

Pan S., Lin M., Xu M., Zhu S., Bian L.-A., Li G. A low-profile programmable beam scanning holographic array antenna without phase shifters. IEEE Internet Things J. 2022;9:8838–8851. doi: 10.1109/JIOT.2021.3116158. DOI

Zhang Y., Luo J., Zhang Y., Huang Y., Cai X., Yang J., Mao D., Li J., Tuo X., Zhang Y. Resolution enhancement for large-scale real beam mapping based on adaptive low-rank approximation. IEEE Trans. Geosci. Remote Sens. 2022;60:1–21. doi: 10.1109/TGRS.2022.3202073. DOI

Ibrahim A.A.J.M.R.M.S. UWB MIMO antenna for high-speed wireless applications. Appl. Comput. Electromagn. Soc. J. (ACES) 2019;34:1294–1299.

Chung K.L., Tian H., Wang S., Feng B., Lai G. Miniaturization of microwave planar circuits using composite microstrip/coplanar-waveguide transmission lines. Alex. Eng. J. 2022;61:8933–8942. doi: 10.1016/j.aej.2022.02.027. DOI

Feng Y., Zhang B., Liu Y., Niu Z., Fan Y., Chen X. A D-band manifold triplexer with high isolation utilizing novel waveguide dual-mode filters. IEEE Trans. Terahertz Sci. Technol. 2022;12:678–681. doi: 10.1109/TTHZ.2022.3203308. DOI

Saad A.A.R., Mohamed H.A. Conceptual design of a compact four-element UWB MIMO slot antenna array. IET Microw. Antennas Propag. 2019;13:208–215.

Tang Z., Wu X., Zhan J., Hu S., Xi Z., Liu Y. Compact UWB-MIMO antenna with high isolation and triple band-notched characteristics. IEEE Access. 2019;7:19856–19865. doi: 10.1109/ACCESS.2019.2897170. DOI

Yang L.S., Xu M., Li C. Four-element MIMO antenna system for UWB applications. Radioengineering. 2019;27:60–67. doi: 10.13164/re.2019.0060. DOI

Kumar S., Lee G.H., Kim D.H., Mohyuddin W., Choi H.C., Kim K.W. A compact four-port UWB MIMO antenna with connected ground and wide axial ratio bandwidth. Int. J. Microw. Wirel. Technol. 2020;12:75–85. doi: 10.1017/S1759078719000874. DOI

Palanisamy P., Subramani M. Closely mounted UWB MIMO antenna with notch characteristics for short-range wireless video transmission application. IETE J. Res. 2022;68:3222–3234. doi: 10.1080/03772063.2020.1755730. DOI

Prabhu P., Malarvizhi S. Novel double-side EBG based mutual coupling reduction for compact quad port UWB MIMO antenna. Int. J. Electron. Commun. 2019;109:146–156. doi: 10.1016/j.aeue.2019.06.010. DOI