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<p>Existing simultaneous wireless power and data transfer (SWPDT) systems encounter significant challenges, including excessive reactive power and the requirement for additional high-frequency signal sources. To overcome these limitations, this paper proposes a novel SWPDT system based on transient response regulation enabled by harmonic communication. The system utilizes the inherent multi-frequency output characteristics of square waves, where the fundamental component is allocated for power transfer and the third-harmonic component for data transmission. On–off keying modulation combined with transient response regulation enables efficient data demodulation. Two dedicated wave trappers are employed to suppress mutual interference, while the system parameters are meticulously optimized to enhance stability and reliability. Experimental results validate that the system achieves interference-free simultaneous wireless power and data transfer while maintaining reactive power stability. Compared to conventional envelope detection methods, the proposed transient response-based demodulation method achieves a data transmission rate of 20 kbps, which is three times higher, with a minimal delay of 111.632&#xa0;ns. The findings demonstrate that the data transmission process does not compromise power transfer stability. This innovative approach significantly enhances transmission speed, stability, and overall system performance, offering a promising solution for next-generation SWPDT applications.</p>

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Simultaneous wireless power and data transfer system based on transient responses regulation enabled by harmonic communication

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • Chenyang Xia,
  • Xirui Wang,
  • Ziyue Yang,
  • Ganquan Cui,
  • Xinheng Li,
  • Kanghua Hu,
  • Yuheng Cao,
  • Qi Wang

摘要

Existing simultaneous wireless power and data transfer (SWPDT) systems encounter significant challenges, including excessive reactive power and the requirement for additional high-frequency signal sources. To overcome these limitations, this paper proposes a novel SWPDT system based on transient response regulation enabled by harmonic communication. The system utilizes the inherent multi-frequency output characteristics of square waves, where the fundamental component is allocated for power transfer and the third-harmonic component for data transmission. On–off keying modulation combined with transient response regulation enables efficient data demodulation. Two dedicated wave trappers are employed to suppress mutual interference, while the system parameters are meticulously optimized to enhance stability and reliability. Experimental results validate that the system achieves interference-free simultaneous wireless power and data transfer while maintaining reactive power stability. Compared to conventional envelope detection methods, the proposed transient response-based demodulation method achieves a data transmission rate of 20 kbps, which is three times higher, with a minimal delay of 111.632 ns. The findings demonstrate that the data transmission process does not compromise power transfer stability. This innovative approach significantly enhances transmission speed, stability, and overall system performance, offering a promising solution for next-generation SWPDT applications.