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This paper presents the design and optimization of a patch antenna at a frequency of 24 GHz for millimeter-wave applications. The dimensions were first calculated using conventional equations, while the substrate used for the antenna design was Kapton owing to its very appropriate dielectric characteristics. The design and simulations of the proposed antenna are performed using CST microwave studio software. An inset feed technique was adopted and further optimization of the inset feed line length was performed. The optimized antenna showed a return loss of −51.143 dB, VSWR of 1.006, radiation pattern of 17.7 dBV, gain of 3.85 dB and directivity of 5.77 dB. The optimized patch antenna exhibits better return loss and wide coverage for wireless communication, radar, and IoT applications operating in the 24 GHz band.

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Design, Optimization, and Performance Enhancement of a 24 GHz Wearable Microstrip Patch Antenna for Body-Centric Communication Using Kapton Substrate

  • 会议论文

  • 发表日期：

    2026年

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  • R. Albert William Raj,
  • K. S. Joseph Wilson

摘要

This paper presents the design and optimization of a patch antenna at a frequency of 24 GHz for millimeter-wave applications. The dimensions were first calculated using conventional equations, while the substrate used for the antenna design was Kapton owing to its very appropriate dielectric characteristics. The design and simulations of the proposed antenna are performed using CST microwave studio software. An inset feed technique was adopted and further optimization of the inset feed line length was performed. The optimized antenna showed a return loss of −51.143 dB, VSWR of 1.006, radiation pattern of 17.7 dBV, gain of 3.85 dB and directivity of 5.77 dB. The optimized patch antenna exhibits better return loss and wide coverage for wireless communication, radar, and IoT applications operating in the 24 GHz band.