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This study introduces the design and performance analysis of an innovative circular patch antenna optimized for medical imaging and wireless communication applications. Operating across a wide bandwidth of 2.57 GHz to 3.85 GHz, the proposed antenna achieves a fractional bandwidth of 41.23%. At the resonance frequency of 3.017 GHz, it exhibits excellent impedance matching with a reflection coefficient (S11) of −78 dB, ensuring minimal signal loss. The compact design incorporates a circular patch with a radius of 14.1 mm, fabricated on an FR-4 substrate with a relative permittivity of 4.3, a thickness of 2.62 mm, and a loss tangent of 0.02. The patch, made of copper with a thickness of 0.035 mm, offers high conductivity and low resistive losses. The antenna features linear polarization, making it versatile for various specialized applications. Performance evaluation, conducted using CST Microwave Studio, confirms the antenna’s high efficiency, achieving a maximum gain of 5.8 dB and a radiation efficiency of up to 75%. These results underscore the antenna’s potential as a compact and efficient solution for medical imaging, particularly for breast cancer detection, as well as for other advanced sensing and communication applications.

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Compact Circular Patch Antenna with Circular Substrate for Dual Applications: Breast Cancer Detection and Broadband Wireless Systems

  • 会议论文

  • 发表日期：

    2025年

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  • Azize Bhaij,
  • Redouane Jouali,
  • Abderrahim Haddad,
  • Khalid Sabri,
  • Mohssin Aoutoul

摘要

This study introduces the design and performance analysis of an innovative circular patch antenna optimized for medical imaging and wireless communication applications. Operating across a wide bandwidth of 2.57 GHz to 3.85 GHz, the proposed antenna achieves a fractional bandwidth of 41.23%. At the resonance frequency of 3.017 GHz, it exhibits excellent impedance matching with a reflection coefficient (S11) of −78 dB, ensuring minimal signal loss. The compact design incorporates a circular patch with a radius of 14.1 mm, fabricated on an FR-4 substrate with a relative permittivity of 4.3, a thickness of 2.62 mm, and a loss tangent of 0.02. The patch, made of copper with a thickness of 0.035 mm, offers high conductivity and low resistive losses. The antenna features linear polarization, making it versatile for various specialized applications. Performance evaluation, conducted using CST Microwave Studio, confirms the antenna’s high efficiency, achieving a maximum gain of 5.8 dB and a radiation efficiency of up to 75%. These results underscore the antenna’s potential as a compact and efficient solution for medical imaging, particularly for breast cancer detection, as well as for other advanced sensing and communication applications.