VP16-05 Implementation of ENG Metasurfaces for 5G Antenna Systems
Creators: T. Islam(1)
A. Eroglu(2)
Publisher: name: IEEE
Year: 2025

In this paper, Epsilon-negative (ENG) metasurfaces and their application in enhancing antenna performance for 5G applications are presented. A unit cell designed to operate at 26GHz has been presented and validated using the 3D electromagnetic simulator, CST. This unit cell is then utilized to construct a metasurface with a circularly polarized radiating patch antenna. Through the analysis of the S-parameters and permittivity of the ENG metasurface, improvements in gain and beamforming capabilities have been realized. It is shown that the proposed design also enhances the wide-bandwidth capabilities of the antenna by employing a single metasurface layer. Additionally, the design offers a low profile and circular polarization, making it ideal for 5G millimeter-wave systems and MIMO applications. ENG metasurfaces are a category of materials that manipulate electromagnetic waves in innovative ways, leading to significant advancements in antenna design and functionality. Their use relies on their ability to exhibit negative permittivity, a feature that is exploited to improve antenna gain, directivity, bandwidth, and other performance parameters [1-2]. This property has been applied in this paper to design a unit ENG cell as shown in Fig.1a, with a radiating patch to enhance the antenna performance. The simulation results showing S11 and S21 of the antenna are given in Fig. 1b. Fig. 1c displays the antenna performance improvement in gain, bandwidth and radiation efficiency.References: 1. E. Ozbay, K. Guven, and K. Aydin, “Metamaterials with negative permeability and negative refractive index: Experiments and simulations,” Journal of Optics A: Pure and Applied Optics, vol. 9, no. 9, Aug. 2007. doi:10.1088/1464-4258/9/9/s04 2. R. A. Shelby, D. R. Smith, S. C. Nemat-Nasser, and S. Schultz, “Microwave transmission through a two-dimensional, isotropic, left-handed metamaterial,” Applied Physics Letters, vol. 78, no. 4, pp. 489–491, Jan. 2001. doi:10.1063/1.1343489 S. Abeywickrama, R. Zhang, and C. Yuen, “Intelligent reflecting surface: Practical phase shift model and beamforming optimization,” ICC 2020 - 2020 IEEE International Conference on Communications (ICC), Jun. 2020. doi:10.1109/icc40277.2020.9148961
In this paper, Epsilon-negative (ENG) metasurfaces and their application in enhancing antenna performance for 5G applications are presented. A unit cell designed to operate at 26GHz has been presented and validated using the 3D electromagnetic simulator, CST. This unit cell is then utilized to construct a metasurface with a circularly polarized radiating patch antenna. Through the analysis of the S-parameters and permittivity of the ENG metasurface, improvements in gain and beamforming capabilities have been realized. It is shown that the proposed design also enhances the wide-bandwidth capabilities of the antenna by employing a single metasurface layer. Additionally, the design offers a low profile and circular polarization, making it ideal for 5G millimeter-wave systems and MIMO applications. ENG metasurfaces are a category of materials that manipulate electromagnetic waves in innovative ways, leading to significant advancements in antenna design and functionality. Their use relies on their ability to exhibit negative permittivity, a feature that is exploited to improve antenna gain, directivity, bandwidth, and other performance parameters [1-2]. This property has been applied in this paper to design a unit ENG cell as shown in Fig.1a, with a radiating patch to enhance the antenna performance. The simulation results showing S11 and S21 of the antenna are given in Fig. 1b. Fig. 1c displays the antenna performance improvement in gain, bandwidth and radiation efficiency.References: 1. E. Ozbay, K. Guven, and K. Aydin, “Metamaterials with negative permeability and negative refractive index: Experiments and simulations,” Journal of Optics A: Pure and Applied Optics, vol. 9, no. 9, Aug. 2007. doi:10.1088/1464-4258/9/9/s04 2. R. A. Shelby, D. R. Smith, S. C. Nemat-Nasser, and S. Schultz, “Microwave transmission through a two-dimensional, isotropic, left-handed metamaterial,” Applied Physics Letters, vol. 78, no. 4, pp. 489–491, Jan. 2001. doi:10.1063/1.1343489 S. Abeywickrama, R. Zhang, and C. Yuen, “Intelligent reflecting surface: Practical phase shift model and beamforming optimization,” ICC 2020 - 2020 IEEE International Conference on Communications (ICC), Jun. 2020. doi:10.1109/icc40277.2020.9148961