volume | PIER Journals

Abstract

This study focuses on the utilization of a slotted patch MIMO antenna to enhance isolation and gain. The MIMO antenna configuration includes two radiators integrated with an array of Frequency Selective Surfaces (FSSs). These antenna components are implemented on an FR-4 substrate and encompassed by FSS units that are optimized for X-band frequencies. The proposed MIMO antenna possesses dimensions of 65 mm (width) × 45 mm (length) × 1.6 mm (height). The primary objective of incorporating FSSs is to not only enhance isolation but also achieve high gain. The proposed FSS design features a circular ring structure with a rectangular loop at its center. The FSS unit cells exhibit excellent stability across various polarization incidence angles and operate within the frequency range of 7 to 9 GHz. The FSS loaded antenna offers a bandwidth ranging from 8.0 to 8.55 GHz, with a peak gain of 6.5 dB and isolation exceeding -20 dB among the MIMO elements. Furthermore, the study explores the MIMO antenna's performance in terms of diversity gain (DG), efficiency, and Envelope Correlation Coefficient (ECC), demonstrating superior results compared to existing state-of-the-art approaches. The proposed findings are validated by fabricating a sample prototype and conducting a comprehensive comparison between simulated and measured results.

1. Hussain, M., W. A. Awan, E. M. Ali, M. S. Alzaidi, M. Alsharef, D. H. Elkamchouchi, A. Alzahrani, and M. Fathy Abo Sree, "Isolation improvement of parasitic element-loaded dual-band MIMO antenna for mm-wave applications," Micromachines, Vol. 13, 1918, 2022.
doi:10.3390/mi13111918 Google Scholar

2. Bayarzaya, B., N. Hussain, W. A. Awan, M. A. Sufian, A. Abbas, D. Choi, J. Lee, and N. Kim, "A compact MIMO antenna with improved isolation for ISM, sub-6 GHz, and WLAN application," Micromachines, Vol. 13, 1355, 2022.
doi:10.3390/mi13081355 Google Scholar

3. Rahman, S. U., Q. Cao, F. Amin, et al. "Multifunctional polarization converting metasurface and its application to reduce the radar cross-section of an isolated MIMO antenna," Journal of Physics D: Applied Physics, Vol. 53, No. 30, 305001, 2020.
doi:10.1088/1361-6463/ab85e7 Google Scholar

4. Khan, M. I., M. I. Khattak, S. U. Rahman, A. B. Qazi, A. A. Telba, and A. Sebak, "Design and investigation of modern UWB-MIMO antenna with optimized isolation," Micromachines, Vol. 11, No. 4, 432, 2020.
doi:10.3390/mi11040432 Google Scholar

5. Ahmad, A., A. Ullah, C. Feng, M. Khan, S. Ashraf, M. Adnan, S. Nazir, and H. U. Khan, "Towards an improved energy efficient and end-to-end secure protocol for iot healthcare applications," Security and Communication Networks, Vol. 2020, 1-10, 2020.
doi:10.1016/S1353-4858(20)30035-0 Google Scholar

6. Hussain, N., W. A. Awan, W. Ali, S. I. Naqvi, A. Zaidi, and T. T. Le, "Compact wideband patch antenna and its MIMO conguration for 28 GHz applications," AEU Int. J. Electron. Commun., Vol. 132, 153612, 2021.
doi:10.1016/j.aeue.2021.153612 Google Scholar

7. Ibrahim, A. A., M. A. Abdalla, A. B. Abdel-Rahman, and H. F. Hamed, "Compact MIMO antenna with optimized mutual coupling reduction using DGS," Int. J. Microw. Wirel. Technol., Vol. 6, 173-180, 2014.
doi:10.1017/S1759078713001013 Google Scholar

8. Sabaawi, A. M. A., K. S. Muttair, O. A. Al-Ani, and Q. H. Sultan, "Dual-band MIMO antenna with defected ground structure for sub-6 GHz 5G applications," Progress In Electromagnetics Research C, Vol. 122, 57-66, 2022.
doi:10.2528/PIERC22050703 Google Scholar

9. Gong, Y.-Y., L. Wang, and Z. Zhang, "The novel Y shaped fractal defected ground structure for the mutual coupling reduction," Progress In Electromagnetics Research M, Vol. 72, 13-21, 2018.
doi:10.2528/PIERM18062301 Google Scholar

10. Yang, Y., Q. Chu, and C. Mao, "Multiband MIMO antenna for GSM, DCS, and LTE indoor applications," IEEE Antennas Wirel. Propag. Lett., Vol. 15, 1573-1576, 2016.
doi:10.1109/LAWP.2016.2517188 Google Scholar

11. Sun, Y., M. Tian, and G. S. Cheng, "Characteristic mode-based neutralization line design for MIMO antenna," International Journal of Antennas and Propagation, Jul. 30, 2022. Google Scholar

12. Ou Yang, J., F. Yang, and Z.Wang, "Reducing mutual coupling of closely spaced microstrip MIMO antennas for WLAN application," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 310-313, 2011.
doi:10.1109/LAWP.2011.2140310 Google Scholar

13. Hussain, M., Q. Abbas, S. H. H. Gardzi, M. Alibakhshikenari, F. Falcone, and E. Limiti, "Ultra-wideband MIMO antenna realization for indoor Ka-band applications," 2022 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM), 108-109, 2022.
doi:10.23919/USNC-URSINRSM57467.2022.9881413 Google Scholar

14. Saravanan, M., V. B. Geo, and S. M. Umarani, "Gain enhancement of patch antenna integrated with metamaterial inspired superstrate," J. Electr. Sys. Info. Technol., Vol. 5, 263-270, 2018. Google Scholar

15. Samantaray, D. and S. Bhattacharyya, "A gain-enhanced slotted patch antenna using metasurface as superstrate configuration," IEEE Trans. Antennas Propag., Vol. 68, 6548-6556, 2020.
doi:10.1109/TAP.2020.2990280 Google Scholar

16. Arnmanee, P. and C. Phongcharoenpanich, "Improved microstrip antenna with HIS elements and FSS superstrate for 2.4 GHz band applications," Int. J. Antennas Propag., Vol. 2018, 1-11, 2018.
doi:10.1155/2018/9145373 Google Scholar

17. Kushwaha, N., R. Kumar, and T. Oli, "Design of a high-gain ultra-wideband slot antenna using frequency selective surface," Microwave Opt. Technol. Lett., Vol. 56, 1498-1502, 2014.
doi:10.1002/mop.28324 Google Scholar

18. Yuan, Y., X. Xi, and Y. Zhao, "Compact UWB FSS reflector for antenna gain enhancement," IET Microwaves Antennas Propag., Vol. 13, 1749-1755, 2019.
doi:10.1049/iet-map.2019.0083 Google Scholar

19. Hsing-Yi, C. and Y. Tao, "Bandwidth enhancement of a U-slot patch antenna using dual-band frequency-selective surface with double rectangular ring elements," Microwave Opt. Technol. Lett., Vol. 53, 1547-1553, 2011. Google Scholar

20. Adelson, M. L., O. N. Henrique, H. O. C. Nilson, and J. P. da-Silva, "Effect of metamaterial cells array on a microstrip patch antenna design," J. Microwaves Optoelectron. Electromag. Appl., Vol. 19, 327-342, 2020. Google Scholar

21. Adibi, S., M. A. Honarvar, and A. Lalbakhsh, "Gain enhancement of wideband circularly polarized UWB antenna using FSS," Radio Sci., Vol. 56, e2020RS007098, 2021. Google Scholar

22. Afzal, M. U., A. Lalbakhsh, and K. P. Esselle, "Electromagnetic-wave beam-scanning antenna using near-field rotatable graded-dielectric plates," J. App. Phy., Vol. 124, 234901-234911, 2018.
doi:10.1063/1.5049204 Google Scholar

23. Mackay, A., B. Sanz-Izquierdo, and E. A. Parker, "Evolution of frequency selective surfaces," Forum for Electromagnetic Research Methods and Application Technologies (FERMAT), Vol. 2, 1-7, 2014. Google Scholar

24. Nair, R. U. and R. M. Jha, "Electromagnetic design and performance analysis of airborne radomes: Trends and perspectives antenna applications corner," Anten. Propag. Mag., Vol. 56, 276-298, 2014.
doi:10.1109/MAP.2014.6931715 Google Scholar

25. Luukkonen, O., F. Costa, C. R. Simovski, A. Monorchio, and S. A. Tretyakov, "A thin electromagnetic absorber for wide incidence angles and both polarizations," IEEE Trans. Antennas Propag., Vol. 57, 3119-3125, 2009.
doi:10.1109/TAP.2009.2028601 Google Scholar

26. Zahirjoozdani, M., M. Khalajamirhosseini, and A. Abdolali, "Wideband radar cross-section reduction of patch array antenna with miniaturized hexagonal loop frequency selective surface," Electron. Lett., Vol. 52, 767-768, 2016.
doi:10.1049/el.2016.0336 Google Scholar

27. Hiranandani, M. A., A. B. Yakovlev, and A. A. Kishk, "Artificial magnetic conductors realized by frequency-selective surfaces on a grounded dielectric slab for antenna applications," IEEE Proc. Microw. Antennas Propag., Vol. 153, 487-493, 2006.
doi:10.1049/ip-map:20050156 Google Scholar

28. Mark, R., N. Rajak, K. Mandal, and S. Das, "Isolation and gain enhancement using metamaterial-based super-strate for MIMO applications," Radioengineering, Vol. 28, No. 4, 689-695, 2019.
doi:10.13164/re.2019.0689 Google Scholar

29. Peng, H., R. Zhi, Q. Yang, J. Cai, Y. Wan, and G. Liu, "Design of a MIMO antenna with high gain and enhanced isolation for WLAN applications," Electron., Vol. 10, No. 14, 1659, 2021.
doi:10.3390/electronics10141659 Google Scholar

30. Jiang, H., L. M. Si, W. Hu, and X. Lv, "A symmetrical dual-beam bowtie antenna with gain enhancement using metamaterial for 5G MIMO applications," IEEE Photonics J., Vol. 11, No. 1, 1-9, 2019. Google Scholar

31. Lin, M., P. Liu, and Z. Guo, "Gain-enhanced Ka-band MIMO antennas based on the SIW corrugated technique," IEEE Antennas Wirel. Propag. Lett., Vol. 16, 3084-3087, 2017.
doi:10.1109/LAWP.2017.2761903 Google Scholar

32. Nguyen, N. L., "Gain enhancement for MIMO antenna using metamaterial structure," Int. J. Microw. Wirel. Technolo., Vol. 11, No. 8, 851-862, 2019.
doi:10.1017/S175907871900059X Google Scholar

33. Khajeh-Khalili, F., M. A. Honarvar, M. Naser-Moghadasi, and M. Dolatshahi, "Gain enhancement and mutual coupling reduction of multiple-intput multiple-output antenna for millimeter-wave applications using two types of novel metamaterial structures," Int. J. RF Microw. Comp. Aided Eng., Vol. 30, No. 1, e22006, 2020. Google Scholar

34. Firmansyah, T., H. Herudin, S. Suhendar, R. Wiryadinata, M. I. Santoso, Y. R. Denny, and T. Supriyanto, "Bandwidth and gain enhancement of MIMO antenna by using ring and circular parasitic with air-gap microstrip structure," TELKOMNIKA, Vol. 15, No. 3, 1155-1163, 2017.
doi:10.12928/telkomnika.v15i3.6377 Google Scholar

35. Niu, Z., H. Zhang, Q. Chen, and T. Zhong, "Isolation enhancement in closely coupled dual-band MIMO patches antennas," IEEE Antennas Wirel. Propag. Lett., Vol. 18, No. 8, 1686-1690, 2019.
doi:10.1109/LAWP.2019.2928230 Google Scholar

36. Mohanty, A., B. R. Behera, and N. Nasimuddin, "Hybrid metasurface loaded tri-port compact antenna with gain enhancement and pattern diversity," Int. J. RF Microw. Comp. Aided Eng., Vol. 31, No. 11, e22795, 2021. Google Scholar

37. Ullah, H., S. U. Rahman, Q. Cao, I. Khan, and H. Ullah, "Design of SWB MIMO antenna with extremely wide-band isolation," Electron., Vol. 9, No. 1, 194, 2020.
doi:10.3390/electronics9010194 Google Scholar

38. Jabire, A. H., H. X. Zheng, A. Abdu, and Z. Song, "Characteristic mode analysis and design of wide band MIMO antenna consisting of metamaterial unit cell," Electron., Vol. 8, No. 1, 68, 2019.
doi:10.3390/electronics8010068 Google Scholar

39. Khan, I., K. Zhang, Q. Wu, I. Ullah, L. Ali, H. Ullah, and S. U. Rahman, "A wideband high-isolation microstrip MIMO circularly-polarized antenna based on parasitic elements," Materials, Vol. 16, No. 1, 103, Jan. 2023.
doi:10.3390/ma16010103 Google Scholar

40. Rahman, S. U., H. Deng, M. Sajjad, A. Rauf, Z. Shafiq, M. Ahmad, and S. Iqbal, "Angularly stable frequency selective surface for the gain enhancement of isolated multiple input multiple output antenna," Microwave Opt. Technol. Lett., Vol. 63, No. 11, 2803-2810, Nov. 2021.
doi:10.1002/mop.32980 Google Scholar

41. Balanis, C. A., Antenna Theory: Analysis and Design, John Wiley & Sons, 2016.

42. Khan, I., Q. Wu, I. Ullah, S. U. Rahman, H. Ullah, and K. Zhang, "Designed circularly polarized two-port microstrip MIMO antenna for WLAN applications," Applied Sciences, Vol. 12, No. 3, 1068, Jan. 20, 2022.
doi:10.3390/app12031068 Google Scholar

Dr. Habib Ullah

Prof. Qunsheng Cao

Dr. Ijaz Khan

Dr. Saeed Ur Rahman

Dr. Adamu Halilu Jabire