volume | PIER Journals

Abstract

In this paper a multifunctional patch antenna loaded with near zero index refraction metamaterial (NZIM) is presented. This multifunctional antenna operates at 5.8 GHz and provides high gain and beam steering capability. The proposed configuration comprises a patch antenna placed below an NZIM superstrate. The rectangular microstrip antenna is used as a radiation source to demonstrate the performance of this design. The NZIM superstrate, which behaves as an NZIM, based on 9×9 resonating unit cells of split ring resonators (SRRs), allows gathering radiated waves from the antenna and collimating them toward the superstrate's normal direction, which results in gain enhancement. The beam-steering in the E-plane is obtained by slowly tilting the NZIM over the patch antenna. The main characteristics of the antenna placed near the NZIM superstrate are studied numerically and experimentally to successfully demonstrate this dual function feature. It is found experimentally that the gain enhancement of 8 dB with improved directivity and radiation efficiency are obtained in comparison with the antenna without the NZIM metasurface. In addition, we were also able to steer the direction of the main beam just by tilting the NZIM superstrate from -20° to 20° with a gain variation of 5 dB and without changing the whole dimension of the structure.

1. Ghassemi, N. and K. Wu, "High-efficient patch antenna array for E-band gigabyte point-to-point wireless services," IEEE Antennas Wirel. Propag. Lett., Vol. 11, 1261-1264, Oct. 2012.
doi:10.1109/LAWP.2012.2224087 Google Scholar

2. Kim, D. Y., Y. Lim, H. S. Yoon, and S. Nam, "High-efficiency W-band electroforming slot array antenna," IEEE Trans. Antennas Propag., Vol. 63, 1854-1857, Apr. 2015.
doi:10.1109/TAP.2015.2398129 Google Scholar

3. Nasimuddin, K. Esselle, and A. K. Verma, "Compact circularly polarized enhanced gain microstrip antenna on high permittivity substrate," Asia-Pacific Microwave Conference Proceedings, Mar. 2006. Google Scholar

4. Munk, A. B., Frequency Selective Surfaces: Theory and Design, John Wiley & Sons, Jan. 2005.

5. Lee, Y. J., J. Yeo, R. Mittra, and W. S. Park, "Design of a high-directivity electromagnetic band gap (EBG) resonator antenna using a frequency-selective surface (FSS) superstrate," Microw. Opt. Technol. Lett., Vol. 43, 462-467, Oct. 2004.
doi:10.1002/mop.20502 Google Scholar

6. Yang, F. R., K. P. Ma, Y. Qian, and T. Itoh, "A uniplanar compact photonic-bandgap (UC-PBG) structure and its applications for microwave circuit," IEEE Trans. Microw. Theory Techn., Vol. 47, 1509-1514, Aug. 1999.
doi:10.1109/22.780402 Google Scholar

7. Yuehe, G., P. E. Karu, and S. B. Trevor, "The use of simple thin partially reflective surfaces with positive re ection phase gradients to design wideband, low-profile EBG resonator antennas," IEEE Trans. Antennas Propag., Vol. 60, 743-750, Oct. 2012. Google Scholar

8. Nikfalazar, M., et al., "Two-dimensional beam-steering phased-array antenna with compact tunable phase shifter based on BST thick films," IEEE Antennas Wirel. Propag. Lett., Vol. 16, 586-588, 2017.
doi:10.1109/LAWP.2016.2591078 Google Scholar

9. Aslan, Y., J. Puskely, J. H. J. Janssen, M. Geurts, A. Roederer, and A. Yarovoy, "Thermal-aware synthesis of 5G base station antenna arrays: An overview and a sparsity-based approach," IEEE Access, Vol. 6, 58868-58882, 2018.
doi:10.1109/ACCESS.2018.2873977 Google Scholar

10. Abdellatif, A. S. M., High performance integrated beam-steering techniques for millimeter-wave systems, Univ. Waterloo, Waterloo, ON, USA, 2015.

11. Ghasemi, A., et al., "High beam steering in Fabry-Perot leaky-wave antennas," IEEE Antennas Wirel. Propag. Lett., Vol. 12, 261-264, 2013.
doi:10.1109/LAWP.2013.2248052 Google Scholar

12. Nakano, H., S. Mitsui, and J. Yamauchi, "Tilted-beam high gain antenna system composed of a patch antenna and periodically arrayed loops," IEEE Trans. Antennas Propag., Vol. 62, 2917-2925, 2014.
doi:10.1109/TAP.2014.2311460 Google Scholar

13. Katare, K. K., A. Biswas, and M. J. Akhtar, "Microwave beam steering of planar antennas by hybrid phase gradient metasurface structure under spherical wave illumination," J. Appl. Phys., Vol. 122, 234901, 2017.
doi:10.1063/1.5000999 Google Scholar

14. Katare, K. K., A. Biswas, and M. J. Akhtar, "Wideband beam-steerable configuration of metasurface loaded slot antenna," Int. J. RF. Microwave Comput. Aid Eng., e21408, 2018.
doi:10.1002/mmce.21408 Google Scholar

15. Trentini, G. V., "Partially reflecting sheet array," IRE Trans. Antennas Propag., Vol. 4, 666-671, 1956.
doi:10.1109/TAP.1956.1144455 Google Scholar

16. Chen, X., M. T. Grzegorczyk, B. I. Wu, J. Pacheco, Jr., and J. A. Kong, "Robust method to retrieve the constitutive effective parameters of metamaterials," Phys. Rev. E, Vol. 70, 16608, Jul. 2004.
doi:10.1103/PhysRevE.70.016608 Google Scholar

17. Li, D., Z. Szabo, X. Qing, E. Li, and Z. N. Chen, "A high gain antenna with an optimized metamaterial inspired superstrate," IEEE Trans. Antennas Propag., Vol. 60, 6018-6023, Aug. 2012.
doi:10.1109/TAP.2012.2213231 Google Scholar

18. Reis, J. R., M. Vala, T. E. Oliveira, T. R. Fernandes, and R. F. S. Caldeirinha, "Metamaterial-inspired flat beamsteering antenna for 5G base stations at 3.6 GHz," Sensors, Vol. 21, 8116, Dec. 2021.
doi:10.3390/s21238116 Google Scholar

19. Luo, Y., Q. Zeng, X. Yan, T. Jiang, R. Yang, J. Wang, Y. Wu, Q. Lu, and X. Zhang, "A graphene-based tunable negative refractive index metamaterial and its application in dynamic beam-tilting terahertz antenna," Microw. Opt. Technol. Lett., Vol. 61, No. 12, 2766-2772, Dec. 2019.
doi:10.1002/mop.31970 Google Scholar

20. Kumar, S., L. Kurra, M. Abegaonkar, A. Basu, and S. K. Koul, "Multilayer FSS for gain improvement of a wide-band stacked printed antenna," 2015 International Symposium Antennas Propagation (ISAP), 1-4, Hobart, TAS, 2015. Google Scholar

21. Kurra, L., M. P. Abegaonkar, A. Basu, and S. K. Koul, "FSS properties of a uniplanar EBG and its application in directivity enhancement of a microstrip antenna," IEEE Antennas Wirel. Propag. Lett., Vol. 15, 1606-1609, 2016.
doi:10.1109/LAWP.2016.2518299 Google Scholar

22. Zhu, H., S. W. Cheung, and T. I. Yuk, "Enhancing antenna boresight gain using a small metasurface lens: Reduction in half-power beamwidth," IEEE Antennas Propag. Mag., Vol. 58, 35-44, Feb. 2016.
doi:10.1109/MAP.2015.2501235 Google Scholar

23. Ma, B., X. M. Yang, T. Q. Li, H. Y. Chenc, H. Hed, Y. W. Chend, A. Line, J. Chenf, and B. J. Wangg, "Gain and directivity enhancement of microstrip antenna loaded with multiple splits octagon-shaped metamaterial superstrate," Int. J. Appl. Electromagn., Vol. 58, 201-213, 2016. Google Scholar

24. Gangwar, D., D. Sushrut, and R. L. Yadava, Gain Enhancement of Microstrip Patch Antenna Loaded with Split Ring Resonator Based Relative Permeability Near Zero as Superstrate, Vol. 96, 22389-22399, Springer, Sept. 2017.

25. Aggarwal, I., S. Pandey, and M. R. Tripathy, "A high gain super wideband metamaterial based antenna," J. Microw. Optoelectron. Electromagn. Application, Vol. 20, No. 2, 248-273, Jun. 2021.
doi:10.1590/2179-10742021v20i21147 Google Scholar

26. Sumathi, K., S. Lavadiya, P. Yin, J. Parmar, and S. K. Patel, "High gain multiband and frequency reconfigurable metamaterial superstrate microstrip patch antenna for C/X/Ku band wireless network applications," Wireless Networks, Vol. 27, 2131-2146, 2021.
doi:10.1007/s11276-021-02567-5 Google Scholar

Dr. Fatima Zohra Khoutar

Dr. Oumaima Nayat-Ali

Dr. Mariem Aznabet

Dr. Otman El Mrabet