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<p>The terahertz frequency band offers significant spectrum resources for next-generation wireless communications and ultra-high-resolution imaging for non-destructive sensing applications. Terahertz sensing and communications are inherently integrated for practical applications, while existing technologies typically focus on either point-to-point high-speed communications or high-resolution imaging. Here we demonstrate a portable 220-GHz-band device with a compact size of 20&#xa0;×&#xa0;20&#xa0;×&#xa0;10 cm<sup>3</sup> that simultaneously realizes terahertz integrated sensing and mobile communications. The prototype is developed using high-temperature co-fired ceramic technology, featuring a phased-array frontend. Mobile communications is experimentally validated, achieving 64 Gbps data rate over 38 m with a &#xa0;±&#xa0;30° scanning range. With 100% shared hardware and orthogonal frequency-division multiplexing waveform, the device supports millimeter-level sensing accuracy. Incorporating a compressed-sensing algorithm further allows free-trajectory scanning, eliminating the need for time-consuming raster scanning. This work establishes a foundation for terahertz integrated sensing and communications, and provides crucial support for future applications such as autonomous vehicles, industrial automation, 6G networks and beyond.</p>

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Terahertz integrated sensing and mobile communications empowered by a 220-GHz-band portable device

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月28日

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  • Guangjian Wang,
  • Mingxiang Li,
  • Qiao Liu,
  • Junwei Zang,
  • Oupeng Li,
  • Xianfeng Du,
  • Liangyuan Xu,
  • Meixia Tao,
  • Chong Han

摘要

The terahertz frequency band offers significant spectrum resources for next-generation wireless communications and ultra-high-resolution imaging for non-destructive sensing applications. Terahertz sensing and communications are inherently integrated for practical applications, while existing technologies typically focus on either point-to-point high-speed communications or high-resolution imaging. Here we demonstrate a portable 220-GHz-band device with a compact size of 20 × 20 × 10 cm3 that simultaneously realizes terahertz integrated sensing and mobile communications. The prototype is developed using high-temperature co-fired ceramic technology, featuring a phased-array frontend. Mobile communications is experimentally validated, achieving 64 Gbps data rate over 38 m with a  ± 30° scanning range. With 100% shared hardware and orthogonal frequency-division multiplexing waveform, the device supports millimeter-level sensing accuracy. Incorporating a compressed-sensing algorithm further allows free-trajectory scanning, eliminating the need for time-consuming raster scanning. This work establishes a foundation for terahertz integrated sensing and communications, and provides crucial support for future applications such as autonomous vehicles, industrial automation, 6G networks and beyond.