Abstract
In this paper, a minimized dual-band multiple input multiple output (MIMO) antenna with high isolation is presented for the fifth generation (5G) and the wireless local area network (WLAN) applications. The proposed antenna structure is composed of two adjacent identical antenna elements which are fed through microstrip lines. The isolation is improved by using a modified T-shaped structure with the defected ground structure (DGS). Finally, the antenna prototype is fabricated and measured. The measured S11 < − 10 dB impedance bandwidth is obtained in 3.3–3.9 GHz and 4.6–5.5 GHz frequency bands, which can cover 5G New Radio N78 (3.3–3.8 GHz) and WLAN (5.15–5.35 GHz). The measured isolation is better than 15 dB, the measured efficiency is larger than 40% and the ECC is smaller than 0.1 in both operating frequency bands. Therefore, the proposed antenna is feasible to be used for 5G and WLAN applications.
Similar content being viewed by others
References
Wu, L., Lyu, H., & Yu, H. Q. (2019). A novel compact UWB-MIMO antenna with quintuple notched-band characteristics. Wireless Personal Communications, 118(3), 1827–1840. https://doi.org/10.1007/s11278-019-06498-5
Cheng, Y., Liu, H., Sheng, B. Q., & Zhu, L. (2020). A compact 4-element MIMO antenna for terminal devices. Microwave and Optical Technology Letters, 62(9), 2930–2937. https://doi.org/10.1002/mop.32396
Huang, J. L., Dong, G. T., Cai, J., Li, H., & Liu, G. (2021). A Quad-port dual-band MIMO antenna array for 5G smartphone applications. Electronics, 10(5), 542–550. https://doi.org/10.3390/electronics10050542
Zhao, A. P., & Ren, Z. (2019). Size reduction of self-isolated MIMO antenna system for 5G mobile phone applications. IEEE Antennas and Wireless Propagation Letters, 18(1), 152–156.
Yang, R., Xi, S. Q., Cai, Q. B., Chen, Z. Z., Wang, X. H., & Liu, G. (2021). A compact planar dual-band multiple input and multiple-output antenna with high isolation for 5G and 4G applications. Micromachines, 12(5), 544–551. https://doi.org/10.3390/mi12050544
Liu, R. P., An, X., Zheng, H. X., Wang, M. J., Gao, Z. B., & Li, E. (2020). Neutralization line decoupling tri-band multiple-input multiple-output antenna design. IEEE Access, 8, 27018–27026. https://doi.org/10.1109/ACCESS.2020.2971038
Xi, S. Q., Huang, J. L., Chen, B., & Liu, G. (2021). A compact dual-band multi-input multi-output antenna for 5G/WLAN/Bluetooth applications. Microwave and Optical Technology Letters, 64(2), 174–181. https://doi.org/10.1002/mop.33089
Guo, J. L., Cui, L., Li, C. L., & Sun, B. (2018). Side-edge frame printed eight-port dual-band antenna array for 5G smartphone applications. IEEE Transactions on Antennas and Propagation, 66(12), 7412–7417. https://doi.org/10.1109/TAP.2018.2872130
Pasumarthi, S. R., Kamili, J. B., & Avala, M. P. (2020). Design of Tri-Band MIMO antenna with improved isolation using DGS and Vias. Wireless Personal Communications, 110(3), 1523–1532. https://doi.org/10.1007/s11277-019-06799-9
Yang, H. L., Xi, X. L., Zhao, Y. C., Tan, Y. C., Du, Z. H., & Wang, L. L. (2018). Co-designed defected ground structure filter with UWB slot antenna. IEICE Electronics Express, 15(23), 1–10. https://doi.org/10.1587/elex.15.20180718
Li, Q., Wei, Y. Y., Tan, M. T., Lei, X., Wu, G. X., Huang, M. Z., & Gong, Y. B. (2019). Flexibly extensible planar self-isolated wideband MIMO antenna for 5G communications. Electronics, 8(9), 994–1005. https://doi.org/10.3390/electronics8090994
Niu, B. J., & Tan, J. H. (2019). Compact self-isolated MIMO antenna system based on quarter-mode SIW cavity. Electronics Letters, 55(10), 574–576. https://doi.org/10.1049/el.2019.0606
Dong, J., Yu, X. P., & Deng, L. W. (2017). A decoupled multiband dual-antenna system for WWAN/LTE smartphone applications. IEEE Antennas and Wireless Propagation Letters, 16, 1528–1532. https://doi.org/10.1109/LAWP.2017.2647807
Jehangir, S. S., & Sharawi, S. S. (2020). A compact single-layer four-port orthogonally polarized Yagi-Like MIMO antenna system. IEEE Transactions on Antennas and Propagation, 68(8), 6372–6378. https://doi.org/10.1109/TAP.2020.2969810
Acknowledgements
This work was supported in part by the Science and Technology Department of Zhejiang Province under Grant No. LGG19F010009, National Natural Science Foundation of China under Grant No. 61671330, and Wenzhou Municipal Science and Technology Program under Grant No. C20170005 and No.2018ZG019.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Chen, Z., Huang, J., Chen, B. et al. Minimized Dual-band MIMO Antenna with High Isolation for 5G and WLAN Applications. Wireless Pers Commun 126, 3269–3278 (2022). https://doi.org/10.1007/s11277-022-09863-z
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11277-022-09863-z