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International Journal of Science, Strategic Management and Technology

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GAIN ENHANCEMET OF DIPOLE ANTENNA BY INCORPORATING PARTIALLY REFLECTIVE METASURFACE LAYER AND DIRECTOR

AUTHORS:
G.S. Jayathi
S. Sowmya
R.V. Sai Varshini
Mentor
Dr.T. Pullaiah
Affiliation
Department, Department of ECE, Vignan's Institute of Management and Technology for Women
CC BY 4.0 License:
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract

This paper presents the design and performance analysis of a high-gaindipole antenna using a partially reflective Meta surface (PRMS) layer and a parasitic director element operating at 3.2 GHz in the S-band. Conventional dipole antennas exhibit low gain and bidirectional radiation, which limits their efficiency in modern communication systems. The existing work on high-gain broadband dipole antennas using PRMS layers demonstrates gain improvement through Fabry–Perot cavity formation. However, further enhancement in directivity and gain is required for advanced applications. In the proposed design, a planar reflector, PRMS layer implemented using a frequency selective surface (FSS), and a rod-shaped director are integrated with the dipole antenna. The PRMS layer enables partial reflection and forms a resonant cavity, while the director focuses radiation in the forward direction. The antenna is simulated using ANSYS HFSS, and the results show a return loss of approximately –17 dB, VSWR close to unity, and gain around 7–8 dB. The proposed design achieves improved directional radiation and enhanced gain compared to the existing model, making it suitable for S-band wireless and satellite applications.

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Jayathi, G., Sowmya, S. & Varshini, R. S. (2026). Gain Enhancemet of Dipole Antenna by Incorporating Partially Reflective Metasurface Layer and Director. International Journal of Science, Strategic Management and Technology, 02(04). https://doi.org/10.55041/ijsmt.v2i4.228

Jayathi, G.S., et al.. "Gain Enhancemet of Dipole Antenna by Incorporating Partially Reflective Metasurface Layer and Director." International Journal of Science, Strategic Management and Technology, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijsmt.v2i4.228.

Jayathi, G.S.,S. Sowmya, and R.V. Varshini. "Gain Enhancemet of Dipole Antenna by Incorporating Partially Reflective Metasurface Layer and Director." International Journal of Science, Strategic Management and Technology 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijsmt.v2i4.228.

References
 1.H. S. Nkimbeng, H. Wang, H. Lee, Y. B. Park, and I. Park, “Dipole antenna incorporated with metasurface and cavity reflector for wideband circular polarisation and high gain,” Scientific Reports, vol. 15, no. 1, 2025.

2.Zhang and H. Liu, “Broadband high-gain dual-polarized filtering antenna using a partially reflective surface lens for 5G applications,” IEEE/MDPI Sensors, vol. 25, no. 21, 2025.

3.Yashchyshyn and P. Tokarsky, “Using a metasurface to enhance the radiation efficiency of dipole antennas,” IEEE-related research (Sub-THz antennas), 2024.

4.Choi et al., “Metamaterial-integrated dipole array antenna for high gain applications,” IEEE-related Applied Sciences, vol. 14, no. 19, 2024.
Ethics and Compliance
✓ All ethical standards met
This article has undergone plagiarism screening and double-blind peer review. Editorial policies have been followed. Authors retain copyright under CC BY-NC 4.0 license. The research complies with ethical standards and institutional guidelines.
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