超宽带(UWB)系统具有高传输速率、低功耗、探测精度高、穿透性强、安全性高等优势，在军事、雷达、生物探测、短距通信及室内室外高精度定位等场景有着广泛的应用。并且随着半导体技术的发展，基于CMOS的UWB雷达芯片成为研究热点。国内外众多学者及商业公司提出各具优势的UWB芯片及系统。该文从UWB系统、UWB芯片架构中关键电路和关键技术的研究现状与发展进行综述。
Ultra-Wide Band (UWB) system has the advantages of high transmission rate, low power consumption, high detection accuracy, strong penetration, high security, etc., so it has a wide range of applications to military, radar, biological detection, short-range communications, and high-precision positioning.And with the development of semiconductor technology, CMOS-based UWB radar chips have become a research hotspot. Many scholars and commercial companies have proposed UWB chips and systems with their own advantages. This paper summarizes the status and trends of key circuits and key technologies in UWB system.