Tri-band Dual Polarized 2 × 2 MIMO Antenna for Wireless Communications

  • R. S. Bhadade
  • S. P. Mahajan
  • Jayant Dhole
  • Sourabh Khujat
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 26)


A dual polarized (DP) 2 × 2 MIMO antenna with high gain and isolation is proposed for WLAN band (IEEE 802.11a/b/g/n) and C-band (spectrum sharing) applications. The proposed MIMO antenna design consists of two DP pentagonal microstrip elements. A slot on a ground is introduced to escalation the isolation among two antennas. The measured frequency bands extend from 2.43 to 2.54 GHz, 4.05 to 4.13 GHz and 5.22 to 5.37 GHz with VSWR <2. The achieved isolation between two ports is more than 30 dB. The measured peak gains at 2.45 GHz, 4.09 GHz and 5.29 GHz resonant frequencies are 7.95 dBd, 3.39 dBd and 4.18 dBd, respectively. The RT druid 5880 substrate is used for fabricating the MIMO antenna. Measured results agree with the simulation ones. The diversity performances in terms of diversity gain (DG), efficiency, and envelope correlation coefficient (ECC) have also been reported. The proposed MIMO antenna is tested using Wi-Fi router.


Mutual coupling Multiple-input multiple-output (MIMO) antenna WLAN 


  1. 1.
    Varzakas, P.: Average channel capacity for Rayleigh fading spread spectrum MIMO systems. Int. J. Commun. Syst. 19(10), 1081–1087 (2006)CrossRefGoogle Scholar
  2. 2.
    Zhang, S., Khan, S.N., He, S.: Reducing mutual coupling for an extremely closely-packed tunable dual-element PIFA array through a resonant slot antenna formed in-between. IEEE Trans. Antennas Propag. 58(8), 2771–2776 (2010)CrossRefGoogle Scholar
  3. 3.
    See, T.S.P., Swee, A.M.L., Chen, Z.N.: Correlation analysis of UWB MIMO antenna system configurations. In: Proceedings of the 2008 IEEE International Conference on Ultra-wideband (ICUWB 2008), vol. 2 (2008)Google Scholar
  4. 4.
    Swelam, W., Soliman, M., Gomaa, A., Taha, T.: Compact dual-band microstrip patch array antenna for MIMO 4G communication systems. In: IEEE Antennas and Propagation Society International Symposium (APSURSI) (2010)Google Scholar
  5. 5.
    Nawaz, H., Saleem, I., Kiyani, A., Abbas, S.M.: MIMO antenna array for wireless local area networks. In: 3rd IEEE International Conference on Computer, Control and Communication (2013)Google Scholar
  6. 6.
    Ahmed, M.I., Abdallah, E.A., Elhennawy, H.M.: Novel wearable eagle shape microstrip antenna array with mutual coupling reduction. Prog. Electromagn. Res. B 62, 87–103 (2015)CrossRefGoogle Scholar
  7. 7.
    John, M., Manoj, B., Rodrigues, S.: Design of slotted rectangular microstrip patch antenna operated in ISM band using RT-duroid substrate. In: International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) (2016)Google Scholar
  8. 8.
    Kharche, S., Reddy, G.S., Mukherjee, B., Gupta, R., Mukherjee, J.: MIMO antenna for Bluetooth, Wi-Fi, Wi-MAX and UWB applications. Prog. Electromagn. Res. C 52, 53–62 (2014)CrossRefGoogle Scholar
  9. 9.
    Chen, Q., Zhang, H., Yang, L.-C., Min, X.-L.: Wideband asymmetric microstrip-fed circularly polarized antenna with monofilar spiral stub for WLAN application. Int. J. f RF Microw. Comput. Aided Eng. 27, e21128 (2017)CrossRefGoogle Scholar
  10. 10.
    Malviya, L., Panigrahi, R.K., Kartikeyan, M.V.: Circularly polarized 2 × 2 MIMO antenna for WLAN applications. Prog. Electromagn. Res. C 66, 97–107 (2016)CrossRefGoogle Scholar
  11. 11.
    Jiang, Y., Wen, G., Sun, H.: A new focused antenna array with circular polarization. Microw. Opt. Technol. Lett. 57(12), 2936–2939 (2015)CrossRefGoogle Scholar
  12. 12.
    Karamzadeh, S., Virdee, B.S., Rafii, V., Kartal, M.: Circularly polarized slot antenna array with sequentially rotated feed network for broadband application. Int. J. RF Microw. Comput. Aided Eng. 25(4), 358–363 (2015)CrossRefGoogle Scholar
  13. 13.
    Al-Ajmi, A.R., Mahmoud, S.F.: A single feed circularly polarized patch antenna for reduced surface wave applications. Microw. Opt. Technol. Lett. 51(11), 2675–2679 (2009)CrossRefGoogle Scholar
  14. 14.
    Yang, J., Liang, C.H., Wang, T.: Novel dual-band circularly polarized wideband antenna for WLAN and WiMAX. J. Electromagn. Waves Appl. 26(14–15), 1881–1888 (2012)CrossRefGoogle Scholar
  15. 15.
    Garg, R., Bhartia, P., Bahl, I., Ittipiboon, A.: Microstrip Antenna Design Handbook, Chap. 5. Artech House, Norwood (2001)Google Scholar
  16. 16.
    Blanch, S., Romeu, J., Corbella, I.: Exact representation of antenna system diversity performance from input parameter description. Electron. Lett. 39(9), 705–707 (2003)CrossRefGoogle Scholar
  17. 17.
    Ko, S.C.K., Murch, R.D.: Compact integrated diversity antenna for wireless communications. IEEE Trans. Antennas Propag. 49(6), 954–960 (2001)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • R. S. Bhadade
    • 1
  • S. P. Mahajan
    • 1
  • Jayant Dhole
    • 1
  • Sourabh Khujat
    • 1
  1. 1.College of Engineering, PunePuneIndia

Personalised recommendations