|تعداد مشاهده مقاله||2,426,073|
|تعداد دریافت فایل اصل مقاله||1,711,181|
|Journal of Electrical and Computer Engineering Innovations (JECEI)|
|دوره 11، شماره 2، مهر 2023، صفحه 327-334 اصل مقاله (867.7 K)|
|نوع مقاله: Original Research Paper|
|شناسه دیجیتال (DOI): 10.22061/jecei.2023.9375.615|
|R. Shirmohamadi1؛ M. Bod* 2؛ G. Dadashzadeh1|
|1Department of Electrical Engineering, Shahed University, Tehran, Iran.|
|2Communications Engineering Department, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.|
|تاریخ دریافت: 04 آبان 1401، تاریخ بازنگری: 10 دی 1401، تاریخ پذیرش: 01 بهمن 1401|
|Background and Objectives: Multi-input multi-output (MIMO) antennas have been of interest in wireless communications in recent years. In these systems, many antennas are placed next to each other. The most important issue in the design of MIMO antennas is mutual coupling. Many methods have been proposed to reduce the mutual coupling of MIMO antennas. Many of these methods require an additional substrate on top or bottom of the antenna. In the reduction of mutual couplings electromagnetic band-gap (EBG) structures are preferred because they are coplanar with the antenna and can be compactly designed. In this paper, to reduce mutual coupling in MIMO antennas, a novel compact EBG structure based on the genetic algorithm optimization is proposed.|
Methods: The method proposed in this paper to design an optimal EBG structure is to use a genetic algorithm (GA). In this method, an EBG unit cell is designed by a binary code, and then the 7×2 EBG structure of the unit cell is placed between two antenna elements with λ/2 distance. The optimization algorithm tries to find the best unit cell to reduce the mutual coupling between two elements. After 70 generations in the genetic algorithm, the GA determines a compact structure of EBG elements which reduces mutual coupling significantly.
Results: Two-element patch antennas with and without the proposed EBG structure are fabricated and the mutual couplings between array elements are measured at 5.68GHz in both cases. It is shown that the proposed compact EBG structure reduced the isolation of the two antennas by 27 dB. This decrease in mutual coupling is much higher than in the previous papers. The proposed EBG has little effect on other antenna radiation parameters such as S11 and radiation patterns.
Conclusion: In general, in this paper, a compact and coplanar EBG structure is proposed to significantly reduce the mutual coupling in MIMO antennas. The method presented in this paper can be used for other MIMO antenna configurations at other frequencies and the proposed method will create a completely optimal structure to reduce mutual coupling.
|Multiple-input–Multiple-output Antenna؛ Decoupling؛ Electromagnetic Band-gap؛ Genetic Algorithm؛ Microstrip Array|
 A. O. Martínez, J. Ø. Nielsen, E. De Carvalho, P. Popovski, “An experimental study of massive MIMO properties in 5G scenarios,” IEEE Trans. Antennas Propag., 66(12): 7206–7215, 2018.
 M. A. Jensen, J. W. Wallace, “A review of antennas and propagation for MIMO wireless communications,” IEEE Trans. Antennas Propag., 52(11): 2810–2824, 2004.
 L. Savy, M. Lesturgie, “Coupling effects in MIMO phased array,” presented at the IEEE Radar Conf., Philadelphia, PA, USA, 2016.
 K. H. Chen, J. F. Kiang, “Effect of mutual coupling on the channel capacity of MIMO systems,” IEEE Trans. Veh. Technol., 65(1): 398-403, 2016.
 M. Li, B. G. Zhong, S. W. Cheung, “Isolation enhancement for MIMO patch antennas using near-field resonators as coupling-mode transducers,” IEEE Trans. Antennas Propag., 67(2): 755–764, 2019.
 K.-L. Wu, C. Wei, X. Mei, and Z.-Y. Zhang, “Array-antenna decoupling surface,” IEEE Trans. Antennas Propag., 65(12): 6728–6738, Dec. 2017.
 F. Liu, J. Guo, L. Zhao, G.-L. Huang, Y. Li, Y. Yin, “Dual-band metasurface-based decoupling method for two closely packed dual-band antennas,” IEEE Trans. Antennas Propag., 68(1): 552–557, 2020.
 X. J. Zou, G. M. Wang, Y. W. Wang, H. P. Li, "An efficient decoupling network between feeding points for multielement linear arrays", IEEE Trans. Antennas Propag., 67(5): 3101-3108, 2019.
 Y.-M. Zhang, S. Zhang, J.-L. Li and G. F. Pedersen, "A transmission-line-based decoupling method for MIMO antenna arrays," IEEE Trans. Antennas Propag., 67(5): 3117-3131, 2019.
 Z. Qamar, L. Riaz, M. Chongcheawchamnan, S. A. Khan, M. F. Shafique, “Slot combined complementary split ring resonators for mutual coupling suppression in microstrip phased arrays,” IET Microw., Antennas Propag., 8(15): 1261–1267, 2014.
 N. Supreeyatitikul, N. Teerasuttakorn, "Improved isolation of a dual-band MIMO Antenna using modified S-SRRs for millimeter-wave applications," in Proc. 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON): 388-391, 2020.
 M. M.Bait-Suwailam, O. F. Siddiqui, O. M. Ramahi, “Mutual coupling reduction between microstrip patch antennas using slotted-complementary split-ring resonators,” IEEE Antennas Wireless Propag. Lett., 9: 876–878, 2010.
 Y. Li, H. Yang, H. Cheng, J. Wu, Y. Yang, L. Hua, Y. Wang, "Isolation enhancement in dual-band MIMO antenna by using metamaterial and slot structures for WLAN applications," J. Phys. D: Appl. Phys., 55(32), 2022.
 Z. Niu, H. Zhang, Q. Chen, T. Zhong, "Isolation enhancement for 1×3 closely spaced E-Plane patch antenna array using defect ground structure and Metal-Vias," IEEE Access, 7: 119375-119383, 2019.
 H. Xing, X. Wang, Z. Gao, X. An, H. X. Zheng, M. Wang, E. Li, "Efficient isolation of an MIMO antenna using defected ground structure,” Electronics, 9(8): 1265, 2020.
 K. S. Parvathi, S. R. Gupta, “Novel dual-band EBG structure to reduce mutual coupling of air gap based MIMO antenna for 5G application,” AEU Int. J. Electron. Commun., 138: 153902, 2021.
 X. Tan, W. Wang, Y. Wu, Y. Liu, A. A. Kishk, "Enhancing isolation in Dual-Band Meander-Line multiple antenna by employing split EBG structure," IEEE Trans. Antennas Propag., 67(4): 2769-2774, 2019.
 Y. F. Cheng, X. Ding, W. Shao, B. Z. Wang, ‘‘Reduction of mutual coupling between patch antennas using a polarization-conversion isolator,’’IEEE Antennas Wireless Propag. Lett., 16: 1257–1260, 2016.
 F. Yang, Y. Rahmat-Samii, “Mutual coupling reduction of microstrip antennas using electromagnetic band-gap structure,” in Proc. IEEE AP-S Dig., 2: 478–481, 2001.
 R. Baggen, M. Martinez-Vazquez, J. Leiss, S. Holzwarth, L. S. Drioli, P. de Maagt, “Low profile Galileo antenna using EBG technology,” IEEE Trans. Antennas Propag, 56(3): 667–674, 2008.
 Z. Iluz, R. Shavit, R. Bauer, “Microstrip antenna phased array with electromagnetic bandgap substrate,” IEEE Trans. Antennas Propag., 52(6):1446–1453, 2004.
 M. Coulombe, S. Farzaneh, C. Caloz, “Compact Elongated Mushroom (EM)-EBG Structure for enhancement of patch antenna array performances,” IEEE Trans. Antennas Propag., 58(4): 1076-1086, 2010.
 S. D. Assimonis, T. V. Yioultsis, C. S. Antonopoulos, “Design and optimization of uniplanar EBG structures for low profile antenna applications and mutual coupling reduction,” IEEE Trans. Antennas Propag., 60(10): 4944-4949, 2012.
 X. Yang, Y. Liu, Y. Xu, S. Gong, “Isolation enhancement in patch antenna array with fractal UC-EBG structure and cross slot,” IEEE Antennas Wireless Propag. Lett., 16: 2175–2178, 2017.
 M. J. Al-Hasan, T. A. Denidni, A. R. Sebak, “Millimeter-wave compact EBG structure for mutual coupling reduction applications,” IEEE Trans. Antennas Propag, 63(2): 823-828, 2015.
 A. J. Kerkhoff, R. L. Rogers, H. Ling, “Design and analysis of planar monopole antennas using a genetic algorithm approach,” IEEE Trans. Antennas Propag., 52 (10): 2709–2718, 2004.
 M. John, M. J. Ammann, “Wideband printed monopole design using a genetic algorithm,” IEEE Antennas Wireless Propag. Lett., 6: 447-449, 2007.
 A. Mallahzadeh, M. Bod, “Methode for Designing Low-pass Filters with a Sharp Cut-off,” IET Microw. Antennas Propag., 8(1): 10-15, 2014.
تعداد مشاهده مقاله: 178
تعداد دریافت فایل اصل مقاله: 70