Enhanced Gain and Isolation Dual-Band 28/38 GHz MIMO Antenna Using Frequency Selective Surface for 5G and IoT Applications | ||
| JES. Journal of Engineering Sciences | ||
| Article 5, Volume 54, Issue 4, July and August 2026 | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2025.416634.1708 | ||
| Authors | ||
| Sherif Abdalla Khaleel* 1; Howida M. AbdelShakor2; Ehab K.I Hamad3; Mohamed I Shehata4 | ||
| 1Assistant Professor, College of Engineering and Technology, Department of Electronics and Communication, AASTMT, Aswan, Egypt | ||
| 2Master Student, College of Engineering, Department of Electronics and Communications, AASTMT, Aswan | ||
| 3Head of Electrical Engineering, Faculty of Engineering, Aswan University | ||
| 4Head of Electronics and Communication Department, College of Engineering, AASTMT, Aswan | ||
| Abstract | ||
| This paper presents the design and performance analysis of a compact dual-band multiple input multiple output (MIMO) antenna system operating at 28 GHz and 38 GHz, targeting 5G and IoT millimeter-wave (mmWave) applications. To address common challenges such as mutual coupling and low gain in compact MIMO configurations, the proposed antenna integrates a Frequency Selective Surface (FSS) substrate which effectively enhancing gain and inter-element isolation. The antenna is designed on a low-cost FR-4 substrate, chosen for its availability and cost-effectiveness, making the solution practical for real-world implementations. Full-wave simulations are conducted using CST Microwave Studio, evaluating the antenna’s performance in terms of S-parameters, gain, isolation, envelope correlation coefficient (ECC), and diversity gain (DG). The results demonstrate excellent isolation, wide impedance bandwidth, and high gain across both bands of operating frequencies. The proposed design is compact, efficient, and well-suited for integration into modern 5G communication systems such as smartphones, wearable devices, and IoT platforms. | ||
| Keywords | ||
| MIMO Antenna; Fifth generation; Frequency Selective Surface; Internet of Things (IoT) | ||
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