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This paper presents the design of Filtenna, which consists of a patch antenna loaded with a bandpass filter. Inset fed rectangular patch antenna integrated with third order coupled line bandpass filter was used. The proposed antenna structure was designed at 2.4GHz. The filter was designed with Chebyshev filtering response having 0.5dB ripple in the passband. The simulation results were obtained using MATLAB-based method of moments solver. The approach to design it with MATLAB is discussed in detail. Reflection coefficient, transmission coefficient, and gain pattern plots were obtained to evaluate the structure's performance. The antenna structure had peak gain of 7dBi. Due to the presence of chebyshev filter in the structure the peak gain versus frequency plot shows ripples with varying gain in the passband.

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Design and Implementation of Filtenna for WiFi Applications

  • 会议论文

  • 发表日期：

    2026年

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  • Swati Vaid,
  • Manidipa Roy,
  • Shafali Jagga

摘要

This paper presents the design of Filtenna, which consists of a patch antenna loaded with a bandpass filter. Inset fed rectangular patch antenna integrated with third order coupled line bandpass filter was used. The proposed antenna structure was designed at 2.4GHz. The filter was designed with Chebyshev filtering response having 0.5dB ripple in the passband. The simulation results were obtained using MATLAB-based method of moments solver. The approach to design it with MATLAB is discussed in detail. Reflection coefficient, transmission coefficient, and gain pattern plots were obtained to evaluate the structure's performance. The antenna structure had peak gain of 7dBi. Due to the presence of chebyshev filter in the structure the peak gain versus frequency plot shows ripples with varying gain in the passband.