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Parametric Analysis of Compact UWB-MIMO Antenna with Improved Isolation Using Parasitic Reflectors and Protruded Ground Strips

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Abstract

A Compact Multiple-Input Multiple-Output (MIMO) antenna of size 16 × 26 mm2 (0.144 λ0 × 0.234 λ0) with improved isolation is presented in this paper. It covers the bandwidth of 2.7–14.9 GHz (FBW is 138.2%), which includes the entire UWB, X band, and Ku band applications. The elements in the structure are placed at a distance of 0.018 λ0 (2 mm). Optimized values of two parallel strips are placed between the elements for isolation, giving│S21│ > 15 dB in most of the band. For further enhancement, four small rectangular strips with different dimensions are protruded to the ground plane, resulting in improved isolation│S21│ > 20 dB in most of the band. The radiation efficiency and peak gain values are 86–96% and 0.8–6.6 dBi respectively. Diversity performance is evaluated with the Envelope Correlation Coefficient (ECC < 0.06), Diversity Gain (DG > 9.975 dB) and Total Active Reflection Coefficient (TARC < − 10 dB). The Parametric study has been done for optimization values of the proposed model. The proposed model is simulated & fabricated on the FR4 substrate, tested and verified practically. The measured results almost follow the simulated results.

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References

  1. Jayanthi, K., & Kalpana, A. M. (2017). Mutual coupling reduction techniques between MIMO antennas for UWB applications. International Journal of Recent Innovation Trends Computer Communications 5(9).

  2. Addepalli, T., & Anitha, V. R. (2020). Compact two-port MIMO antenna with high isolation using parasitic reflectors for UWB, X and Ku band applications. Progress In Electromagnetics Research C, 102, 63–77.

    Article  Google Scholar 

  3. Nadeem, I., & Choi, D.-Y. (2018). Study on mutual coupling reduction technique for MIMO antennas. IEEE Access, 7, 563–586.

    Article  Google Scholar 

  4. Addepalli, T., & Anitha, V. R. (2020). A very compact and closely spaced circular shaped UWB MIMO antenna with improved isolation. AEU-International Journal of Electronics and Communications, 114, 153016.

    Article  Google Scholar 

  5. Isaac, A. A., Al-Rizzo, H., Yahya, S., Al-Wahhamy, A., & Abushamleh, S. (2018). Decoupling of two closely-spaced planar monopole antennas using two novel printed-circuit structures. Microwave and Optical Technology Letters, 60(12), 2954–2963.

    Article  Google Scholar 

  6. Radhi, A. H., Nilavalan, R., Wang, Y., Al-Raweshidy, H. S., Eltokhy, A. A., & Ab Aziz, N. (2018). Mutual coupling reduction with a wideband planar decoupling structure for UWB–MIMO antennas. International Journal of Microwave and Wireless Technologies, 10(10), 1143–1154.

    Article  Google Scholar 

  7. Li, Q., Feresidis, A. P., Mavridou, M., & Hall, P. S. (2015). Miniaturized double-layer EBG structures for broadband mutual coupling reduction between UWB monopoles. IEEE Transactions on Antennas and Propagation, 63(3), 1168–1171.

    Article  MathSciNet  Google Scholar 

  8. Tripathi, S., Mohan, A., & Yadav, S. (2015). A compact Koch fractal UWB MIMO antenna with WLAN band-rejection. IEEE Antennas and wireless propagation letters, 14, 1565–1568.

    Article  Google Scholar 

  9. Chithradevi, R., & Sreeja, B. S. (2017). A compact UWB MIMO antenna with high isolation and low correlation for wireless applications. In: 2017 IEEE International Conference on Antenna Innovations & Modern Technologies for Ground, Aircraft and Satellite Applications (IAIM). IEEE.

  10. Jafri, S. I., Saleem, R., Shafique, M. F., & Brown, A. K. (2016). Compact reconfigurable multiple-input-multiple-output antenna for ultra-wideband applications. IET Microwaves, Antennas & Propagation, 10(4), 413–419.

    Article  Google Scholar 

  11. Kang, L., Li, H., Wang, X., & Shi, X. (2015). Compact offset microstrip-fed MIMO antenna for band-notched UWB applications. IEEE Antennas and Wireless Propagation Letters, 14, 1754–1757.

    Article  Google Scholar 

  12. Park, J.-D., Rahman, M., & Chen, H. N. (2019). Isolation enhancement of wide-band MIMO array antennas utilizing resistive loading. IEEE Access, 7, 81020–81026.

    Article  Google Scholar 

  13. Zhu, J., Li, S., Feng, B., Deng, L., & Yin, S. (2015). Compact dual-polarized UWB quasi-self-complementary MIMO/diversity antenna with band-rejection capability. IEEE Antennas and Wireless Propagation Letters, 15, 905–908.

    Article  Google Scholar 

  14. Deng, J.-Y., Guo, L.-X., & Liu, X.-L. (2015). An ultra-wideband MIMO antenna with a high isolation. IEEE antennas and wireless propagation letters, 15, 182–185.

    Article  Google Scholar 

  15. Alsath, M. G. N., & Kanagasabai, M. (2015). Compact UWB monopole antenna for automotive communications. IEEE Transactions on Antennas and Propagation, 63(9), 4204–4208.

    Article  Google Scholar 

  16. Zhu, J., Feng, B., Peng, B., Deng, L., & Li, S. (2016). A dual notched band MIMO slot antenna system with Y-shaped defected ground structure for UWB applications. Microwave and Optical Technology Letters, 58(3), 626–630.

    Article  Google Scholar 

  17. Mathur, R., & Dwari, S. (2019). Compact planar reconfigurable UWB-MIMO antenna with on-demand worldwide interoperability for microwave access/wireless local area network rejection. IET Microwaves, Antennas & Propagation, 13(10), 1684–1689.

    Article  Google Scholar 

  18. Zhao, L., & Ke-Li, Wu. (2015). A dual-band coupled resonator decoupling network for two coupled antennas. IEEE Transactions on Antennas and Propagation, 63(7), 2843–2850.

    Article  MathSciNet  Google Scholar 

  19. Wang, S., & Zhengwei, Du. (2014). Decoupled dual-antenna system using crossed neutralization lines for LTE/WWAN smartphone applications. IEEE Antennas and Wireless Propagation Letters, 14, 523–526.

    Article  Google Scholar 

  20. Mchbal, A., Amar Touhami, N., Elftouh, H., & Dkiouak, A. (2018). Mutual coupling reduction using a protruded ground branch structure in a compact UWB owl-shaped MIMO antenna. International Journal of Antennas and Propagation, 2018.

  21. Liu, Li., Cheung, S. W., & Yuk, T. I. (2015). Compact MIMO antenna for portable UWB applications with band-notched characteristic. IEEE Transactions on Antennas and Propagation, 63(5), 1917–1924.

    Article  MathSciNet  Google Scholar 

  22. Mathur, R., & Dwari, S. (2019). A compact UWB-MIMO with dual grounded CRR for isolation improvement. International Journal of RF and Microwave Computer-Aided Engineering, 29(1), e21500.

    Article  Google Scholar 

  23. Chandel, R., Gautam, A. K., & Rambabu, K. (2018). Design and packaging of an eye-shaped multiple-input–multiple-output antenna with high isolation for wireless UWB applications. IEEE Transactions on Components, Packaging and Manufacturing Technology, 8(4), 635–642.

    Article  Google Scholar 

  24. Chandel, R., Gautam, A. K., & Rambabu, K. (2018). Tapered fed compact UWB MIMO-diversity antenna with dual band-notched characteristics. IEEE Transactions on Antennas and Propagation, 66(4), 1677–1684.

    Article  Google Scholar 

  25. Dkiouak, A., Zakriti, A., & El Ouahabi, M. (2020). Design of a compact dual-band MIMO antenna with high isolation for WLAN and X-band satellite by using orthogonal polarization. Journal of Electromagnetic Waves and Applications, 34(9), 1254–1267.

    Article  Google Scholar 

  26. Zhang, S., & Pedersen, G. F. (2015). Mutual coupling reduction for UWB MIMO antennas with a wideband neutralization line. IEEE antennas and wireless propagation letters, 15, 166–169.

    Article  Google Scholar 

  27. Tao, J., & Feng, Q. (2016). Compact ultra-wideband MIMO antenna with half-slot structure. IEEE Antennas and wireless Propagation letters, 16, 792–795.

    Article  Google Scholar 

  28. Ray, K. P. (2008). Design aspects of printed monopole antennas for ultra-wide band applications. International journal of antennas and propagation, 2008, 1–8.

    Article  Google Scholar 

  29. Sharawi, M. S., Hassan, A. T., & Khan, M. U. (2017). Correlation coefficient calculations for MIMO antenna systems: A comparative study. International Journal of Microwave and Wireless Technologies, 9(10), 1991–2004.

    Article  Google Scholar 

  30. Addepalli, T., & Anitha, V. R. (2019). Design and parametric analysis of hexagonal shaped MIMO patch antenna for S-band, WLAN, UWB and X-band applications. Progress In Electromagnetics Research C, 97, 227–240.

    Article  Google Scholar 

  31. Fritz-Andrade, E., Jardon-Aguilar, H., & Tirado-Mendez, J. A. (2020). The correct application of total active reflection coefficient to evaluate MIMO antenna systems and its generalization to N ports. International Journal of RF and Microwave Computer-Aided Engineering, 30(4), e22113.

    Article  Google Scholar 

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Acknowledgements

Authors feel a need to convey heartfelt thanks to Rakesh Kumar Singh, Scientist 'F' and Head, Stealth technologies and test ranges, Directorate of radar seekers and systems (DRSS), RCI, DRDO, Hyderabad, India for providing lab facilities for testing and measure the radiation patterns of the fabricated antenna as a part of research work.

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Authors and Affiliations

  1. Department of ECE, JNTUA, Anantapur, Andra Pradesh, India

    Tathababu Addepalli

  2. Department of ECE, BMS Institute of Technology & Management, Bangalore, Karnataka, India

    V. R. Anitha

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  1. Tathababu Addepalli
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  2. V. R. Anitha
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Correspondence to Tathababu Addepalli.

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Addepalli, T., Anitha, V.R. Parametric Analysis of Compact UWB-MIMO Antenna with Improved Isolation Using Parasitic Reflectors and Protruded Ground Strips. Wireless Pers Commun 123, 2209–2225 (2022). https://doi.org/10.1007/s11277-021-09235-z

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