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Novel ENG Metamaterial for Gain Enhancement of an Off-set Fed CPW Concentric Circle Shaped Patch Antenna

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Abstract

This paper presents a multiband coplanar waveguide (CPW)-fed concentric circle shaped patch antenna for WLAN, LTE-A, 5G Wi-Fi, and X-band applications, which is loaded with metamaterial unit cell. The proposed patch antenna employs arc shaped patch and concentric circle shaped patch achieves ultra-wideband operation. The proposed two-layer antenna configuration consists of metamaterial super-substrate. The measured reflection co-efficient (S11) demonstrated three wideband operation ranging from 3.06 to 4.72 GHz (B.W of 42%), 4.94–-6.19 GHz (B.W of 22%) and 6.50–10.56 GHz (B.W of 47.5%). The metamaterial structure is obtained through the arrangement of the proposed unit cell in 5 \(\times \) 5 order. The proposed metamaterial structure properties were examined for wave propagation through the material in two major axes directions (x and y-axis). For both axes, the metamaterial exhibits near Zero refractive index for wide range of frequency. The addition of this super-substrate provides significant gain enhancement by 181% when the maximum gain reaches 6.2 dBi at X-band frequency. Since the proposed antenna is more efficient, it might be used for X-band operations such as satellite communication, military, and medical monitoring.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Parisutham Institute of Technology and Science, Thanjavur, Tamilnadu, India

    A. Sujatha Priyadharshini

  2. Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore, Tamilnadu, India

    C. Arvind

  3. Department of Communication Engineering, School of Electronics Engineering, Vellore Institute of Technology, Vellore, Tamilnadu, India

    Madurakavi Karthikeyan

Authors
  1. A. Sujatha Priyadharshini
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  2. C. Arvind
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  3. Madurakavi Karthikeyan
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Contributions

ASP has contributed to the basic design simulation and fabrication. CA and MK contributed the performance enhancement and manuscript preparation.

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Correspondence to A. Sujatha Priyadharshini.

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Priyadharshini, A.S., Arvind, C. & Karthikeyan, M. Novel ENG Metamaterial for Gain Enhancement of an Off-set Fed CPW Concentric Circle Shaped Patch Antenna. Wireless Pers Commun 130, 2515–2530 (2023). https://doi.org/10.1007/s11277-023-10390-8

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  • DOI: https://doi.org/10.1007/s11277-023-10390-8

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