Gain enhancement in octagonal shaped frequency reconfigurable antenna using metasurface superstrate-Reference-Cited by-同舟云学术

Gain enhancement in octagonal shaped frequency reconfigurable antenna using metasurface superstrate

Published:2024-03-15 Issue:5-6 Volume:78 Page:241-252
ISSN:0016-1136
Container-title:Frequenz
language:en
Short-container-title:

Author:

Kandasamy Karthika¹^ORCID,Kaliappan Kavitha²^ORCID,Shanmugam Sasikala¹^ORCID,Srinivasan Adithya¹^ORCID

Affiliation:

1. Department of Electronics and Communication Engineering , 56972 Kumaraguru College of Technology , Coimbatore , India

2. Department of Electronics and Communication Engineering , 154105 Velammal College of Engineering and Technology , Madurai , India

Abstract

Abstract A novel, high-gain reconfigurable antenna with a metasurface (MS) superstrate-based configuration is proposed in this research article. The design utilizes a concentric octagonal-shaped patch as a base antenna. Four SMP1345-079LF PIN diode switches are incorporated in the base antenna to facilitate frequency reconfiguration. When all four of the diodes are in OFF condition, the designed antenna resonates at 5.8 GHz. Switching ON the diodes switches the resonating frequency to 5 GHz. A novel MS unit cell of shape like ‘8’ has been designed and analyzed. The designed unit cell exhibits properties of the metamaterial in the operating frequencies. An MS superstrate of a 5 × 5 array has been designed and connected to the base antenna through Teflon rods. Further, the proposed reconfigurable antenna with MS has been analyzed for air and foam medium (medium between antenna and superstrate). The proposed structure offers better performance for the air medium with a gain enhancement of 4.23 dBi and 1.55 dBi at 5 GHz and 5.8 GHz respectively. Fabrication and testing processes are undertaken to validate the proposed antenna’s performance.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/freq-2023-0269/pdf

Reference38 articles.

1. K. Karthika and K. Kavitha, “Reconfigurable antennas for advanced wireless communications: a review,” Wireless Pers. Commun., vol. 120, no. 4, pp. 2711–2771, 2021. https://doi.org/10.1007/s11277-021-08555-4.

2. K. Karthika and K. Kavitha, “Design and development of parasitic elements loaded quadband frequency and pattern reconfigurable antenna,” Int. J. RF Microwave Comput. Aided Eng., vol. 2023, pp. 1–10, 2023, https://doi.org/10.1155/2023/4034241.

3. A. M. Sadiq, Y. Gu, Y. Luo, Y. Chen, and K. Ma, “Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements,” Front. Mech. Eng., vol. 17, no. 4, pp. 1–17, 2022. https://doi.org/10.1007/s11465-022-0716-0.

4. K. Mondal, “Bandwidth and gain enhancement of microstrip antenna by frequency selective surface for WLAN, WiMAX applications,” Sādhanā, vol. 44, no. 11, p. 233, 2019, https://doi.org/10.1007/s12046-019-1222-x.

5. C. Shi, J. Zou, J. Gao, and C. Liu, “Gain enhancement of a dual-band antenna with the FSS,” Electronics (Switzerland), vol. 11, no. 18, pp. 1–15, 2022. https://doi.org/10.3390/electronics11182882.