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<p>Low-power microwave systems with minimal losses are required due to the growing demand for more efficient communication systems. Two-dimensional semiconductors can potentially be used to create low-power microwave circuits, but the development of integrated two-dimensional microwave systems remains limited. Here we report integrated two-dimensional transmitters fabricated on four-inch monolayer molybdenum disulfide (MoS<sub>2</sub>) wafers. The transmission loss of monolayer MoS<sub>2</sub> channel in switch is 0.51 dB, and the power consumption of the complete 16-element transmitter is 3.2 μW. The 4 × 4 phased array transmitter, which offers both communication and radar functions, exhibits a bandwidth of 6 GHz, a beam scanning angle from −35° to 35°, a transmission distance of 136 m and a standby time of 26 days when powered by a 1,000 mAh-capacity battery. Our complete board-level system has a size of around 3 × 2 cm<sup>2</sup>, and we show that it can be integrated into a small insect model.</p>

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Integrated two-dimensional microwave transmitters fabricated on the wafer scale

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Tianxiang Wu,
  • Liyuan Zhu,
  • Xiangqi Dong,
  • Hangyu Qiu,
  • Zhuofan Xu,
  • Tianyang Yan,
  • Xiang Liu,
  • Ji Zhou,
  • Hao Ying,
  • Ziyuan Wu,
  • Wenzhong Bao,
  • Shunli Ma,
  • Peng Zhou

摘要

Low-power microwave systems with minimal losses are required due to the growing demand for more efficient communication systems. Two-dimensional semiconductors can potentially be used to create low-power microwave circuits, but the development of integrated two-dimensional microwave systems remains limited. Here we report integrated two-dimensional transmitters fabricated on four-inch monolayer molybdenum disulfide (MoS2) wafers. The transmission loss of monolayer MoS2 channel in switch is 0.51 dB, and the power consumption of the complete 16-element transmitter is 3.2 μW. The 4 × 4 phased array transmitter, which offers both communication and radar functions, exhibits a bandwidth of 6 GHz, a beam scanning angle from −35° to 35°, a transmission distance of 136 m and a standby time of 26 days when powered by a 1,000 mAh-capacity battery. Our complete board-level system has a size of around 3 × 2 cm2, and we show that it can be integrated into a small insect model.