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Design and Optimization of Multi-Stage WiFi Antenna Arrays at 2.45 GHz: A Comparative Study of Electrical and Radiation Performance

Abstract

This research demonstrates the development and performance enhancement of an antenna array operating at 2.45 GHz for Wi-Fi applications. The process began with a conventional rectangular patch antenna, which achieved an initial reflection coefficient (S11) of –12.66 dB and a gain of 6.88 dBi. To improve impedance matching and overall performance, two horizontal rectangular openings and two vertical rectangular slots are on either side of the patch. These modifications enhanced the S11 to –24.78 dB and increased the gain to 7.08 dBi. Subsequently, two array configurations were developed: Array 1 achieved a gain of 7.42 dBi, while Array 2 demonstrated a significantly improved gain of 10.20 dBi. This progressive design approach highlights the effectiveness of structural enhancements and array integration in optimizing antenna performance for wireless communication applications.

Research topics

  • Antenna Design and Analysis
  • Microwave Engineering and Waveguides
  • Radio Frequency Integrated Circuit Design

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DOI: 10.1109/scc66964.2025.11424783

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