High-Gain Slit-Loaded Microstrip Patch Antenna with Defected Ground Structure for WLAN at 5.8 GHz
| Authors | Samah A. M. Ahmed1, Faez M. B. Abdo1, Abdul Guddoos S. A. Gaid1, , Mohammad Ahmed Alomari2, Mukhtar Ghaleb3, Imran Mohd Ibrahim4 |
| Affiliations |
1Faculty of Engineering & Information Technology, Taiz University, Taiz, Yemen 2Department of Cyber Security, Faculty of Artificial Intelligence and Cyber Security (FAIX), Universiti Teknikal Malaysia Melaka (UTeM), 76100 Melaka, Malaysia 3Department of Information Systems and Cybersecurity, College of Computing and Information Technology, University of Bisha, 67714 Bisha, Saudi Arabia 4Centre for Telecommunication Research and Innovation (CeTRI), Fakulti Teknologi Kejuruteraan Elektronik dan Komputer, Universiti Teknikal Malaysia Melaka (UTeM), Melaka, Malaysia |
| Е-mail | samahalsabaie@gmail.com |
| Issue | Volume 18, Year 2026, Number 4 |
| Dates | Received 24 May 2026; revised manuscript received 17 August 2026; published online 21 August 2026 |
| Citation | Samah A. M. Ahmed, Faez M. B. Abdo, et al., J. Nano- Electron. Phys. 18 No 4, 04004 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(4).04004 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Microstrip patch antenna, Slit loading, Defected ground structure, WLAN (10) , 5.8 GHz, Impedance matching, Radiation efficiency, High gain (2) . |
| Annotation |
This work proposes a high-gain slit-loaded microstrip patch antenna with defected ground structure (DGS) to be used for WLAN at 5.8 GHz. The antenna is built on an Arlon AD 410 substrate with a thickness of 1.6 mm and a relative permittivity of 4.1. The proposed configuration employs a modified rectangular patch with narrow slits, an elliptical defect and rectangular slot in the ground plane to enhance impedance matching and radiation performance. The simulated results indicate that the antenna resonates at 5.8 GHz with reflection coefficient (S11) of – 57.95 dB and an impedance bandwidth of 520 MHz. The antenna also achieves a peak gain of 7.6 dBi and a maximum radiation efficiency of 92 %. It is observed that the proposed antenna offers a small-size structure and enhanced performance, and it can be applied in the WLAN in the 5.8 GHz band. |
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