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Design of a High-Gain Wideband Co-Planar Waveguide Antenna for Wireless Communications Using Metamaterial Techniques

Authors

  • Narayanarao Potnuru Department of ECE, Aditya Institute of Technology and Management, Tekkali, AP-532201, India
  • Karunakar Godi Department of ECE, GITAM (Deemed to be University), Visakhapatnam, AP-530045, India
Volume: 15 | Issue: 4 | Pages: 25257-25262 | August 2025 | https://doi.org/10.48084/etasr.11565

Received: 18 April 2025 | Revised: 22 May 2025 | Accepted: 31 May 2025 | Online: 24 June 2025


Corresponding author: Narayanarao Potnuru

Abstract

This study presents the design and analysis of a compact metamaterial-based antenna, tailored for wideband wireless communication systems and intended primarily for commercial use. The antenna combines a Co-planar Waveguide (CPW) structure with a Square Ring Resonator (SRR), aiming to boost both bandwidth and gain. Fabricated on a standard FR4 substrate with overall dimensions of 24 × 24 × 1.6 mm³, the antenna’s performance was first optimized using CST Microwave Studio, a full-wave Electromagnetic (EM) simulation platform. Key parameters, such as the reflection coefficient (S11), radiation pattern, and gain were thoroughly evaluated. The simulation predicted a wide operating bandwidth of 7 GHz, ranging from 2.8 to 9.8 GHz, with a peak gain of 4.7 dBi. Following fabrication via photolithography, an experimental validation was carried out using a Vector Network Analyzer (VNA). The measured results demonstrated excellent agreement with the simulations, revealing an even broader bandwidth of approximately 8.2 GHz (1.58–9.8 GHz) and a slightly improved peak gain of approximately 5.14 db. These findings confirm the reliability of the proposed design and underline its potential as a practical solution for modern wideband wireless applications.

Keywords:

CPW, SRR, CST, metamaterials, bandwidth

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How to Cite

[1]
Potnuru, N. and Godi, K. 2025. Design of a High-Gain Wideband Co-Planar Waveguide Antenna for Wireless Communications Using Metamaterial Techniques . Engineering, Technology & Applied Science Research. 15, 4 (Aug. 2025), 25257–25262. DOI:https://doi.org/10.48084/etasr.11565.

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