⚡ 本页包含 AI 生成的分析内容，仅供参考
提出一种基于自差式架构的250GHz FMCW雷达，采用55nm BiCMOS工艺实现，以单一天线替代传统收发机需要的独立发射和接收天线，从而显著缩小芯片面积。该雷达实现了微米级的距离分辨率，解决了现有太赫兹雷达分辨率不足（>1.5mm）的问题，适用于小缺陷检测和表面筛查等工业应用。
systems have pushed the operation frequency to the terahertz range due to the shorter wavelength and larger available bandwidth [1-5]. However, the best-reported range resolution cannot go below 1.5mm with a 100GHz bandwidth [1], which is not enough for many industrial applications like small-defect detection and surface screening. Moreover, most previous works [3-5] are based on conventional transceiver architectures that use separate antennas for TX and RX or use parallel multi-antenna designs to increase the frequency bandwidth [1]. These structures not only increase the chip size but also degrade the radar performance when they are placed at the focal point of a collimating lens. This degradation occurs due to the separated antenna phase centers, which are not well
S. M. Hossein Naghavi1, Saghar Seyedabbaszadehesfahlani1, Farzad Khoeini1,
Andreia Cathelin2, Ehsan Afshari1 University of Michigan, Ann Arbor, MI STMicroelectronics, Crolles, France 1 2 The increasing demands for compact, low-cost, and high-resolution radar