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<p>Flexible millimeter-wave (mmWave) antennas hold great promise for conformal integration across diverse devices and high-speed, large-channel capacity in 5G/6G wireless communications. Spoof surface plasmon polaritons (SSPPs) structure with periodic grooves is well-suitable for designing miniaturized, flexible and ultra-wideband planar mmWave antennas. However, achieving high-precision fabrication of SSPP configurations with optimal micrometer-scale filling factors using flexible conductive materials remains highly challenging. Herein, we report the high-precision all-Ti<sub>3</sub>C<sub>2</sub>-printed flexible ultra-wideband mmWave endfire antennas based on SSPPs for wireless communication. The SSPPs antenna exhibits a wide operating bandwidth of 25–49 GHz, which stems from the reactance properties of the ordered multilayer structure of Ti<sub>3</sub>C<sub>2</sub>. The <i>S-</i>parameter and gain can be well maintained even after cyclic bending, owing to the robust adhesion between the polydopamine-modified substrate and the Ti<sub>3</sub>C<sub>2</sub> film. This work pioneers the demo instance of flexible Ti<sub>3</sub>C<sub>2</sub> antenna for high-speed (446.06 Mbps), large-capacity, and low-latency mmWave wireless communication.</p>

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High-precision All-MXene-printed flexible ultra-wideband millimeter-wave endfire antennas based on spoof surface plasmon polaritons for wireless communication

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月21日

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  • Feifei Lin,
  • Hao Ni,
  • Weiwei Zhao,
  • Leilei Liu,
  • Yijie Zhang,
  • Zijing Huang,
  • Wenjin Wang,
  • Qixiang Wang,
  • Tushun Wang,
  • Yan Bai,
  • Ning Ding,
  • Shujuan Liu,
  • Wei Huang,
  • Qiang Zhao

摘要

Flexible millimeter-wave (mmWave) antennas hold great promise for conformal integration across diverse devices and high-speed, large-channel capacity in 5G/6G wireless communications. Spoof surface plasmon polaritons (SSPPs) structure with periodic grooves is well-suitable for designing miniaturized, flexible and ultra-wideband planar mmWave antennas. However, achieving high-precision fabrication of SSPP configurations with optimal micrometer-scale filling factors using flexible conductive materials remains highly challenging. Herein, we report the high-precision all-Ti3C2-printed flexible ultra-wideband mmWave endfire antennas based on SSPPs for wireless communication. The SSPPs antenna exhibits a wide operating bandwidth of 25–49 GHz, which stems from the reactance properties of the ordered multilayer structure of Ti3C2. The S-parameter and gain can be well maintained even after cyclic bending, owing to the robust adhesion between the polydopamine-modified substrate and the Ti3C2 film. This work pioneers the demo instance of flexible Ti3C2 antenna for high-speed (446.06 Mbps), large-capacity, and low-latency mmWave wireless communication.