A 79.7µW Two-Transceiver Direct-RF 7.875GHz UWB Radar SoC in 40nm CMOS

📋 论文概要

本文提出了一款采用40nm CMOS工艺、工作在7.875GHz的全集成超宽带雷达SoC，集成了两个直接射频收发器。该芯片以79.7µW的超低功耗实现高精度测距和传感，适用于用户存在检测和生命体征监测等场景。

💡 主要创新点

• 首次在40nm CMOS上集成两个直接射频UWB收发器，实现单芯片雷达SoC，显著降低系统功耗和尺寸。
• 采用直接射频架构，无需下变频，简化模拟前端并提升能效，实现79.7µW的超低功耗。
• 双收发器架构支持同时发射和接收，增强雷达探测能力，适用于高精度定位和实时监测。

🏷 关键词

📄 原文摘要

Håkon A. Hjortland1, Lieuwe Leene1, Torleif Skår1, Espen Stenersen1, Dag T. Wisland1,2 Novelda, Oslo, Norway University of Oslo, Oslo, Norway 1 2 In recent years ultra-wideband (UWB) radios have found increasing use in applications requiring precise ranging and localization of active tags, in part due to the inherent bandwidth and thereby accuracy in range determination [1-4]. For the same reason, UWB is a suitable technology for sensing. Radar-based sensors offer a compelling modality in scenarios such as user presence detection and vital signs monitoring [5,6]. This work presents a fully integrated direct-RF UWB radar SoC, outlined in Fig. 4.1.1, with two transceivers (TRX) for inferring angle-of-arrival (AoA). Combining angle and range information allows the detection zone of the radar sensor to be adapted to its surroundings by dynamically constraining its field of view (FoV). The SoC contains clock

👥 作者与机构

Nikolaj Andersen1, Sumit Bagga1, Jørgen Andreas Michaelsen1,