题目/Title：A 17 mW 3-to-5 GHz Duty-Cycled Vital Sign Detection Radar Transceiver With Frequency Hopping and Time-Domain Oversampling

作者/Author：
                        Xican Chen,Yiyu Shen,Zhicheng Wang,Woogeun Rhee,Zhihua Wang

期刊/Journal：IEEE Transactions on Circuits and Systems I: Regular Papers

年份/Issue Date：2017Apr.

卷（期）及页码/Volume（No.）&pages：Vol.64, No.4, pp. 969 - 980

摘要/Abstract：
This paper presents a low power interference-robust radar transceiver architecture for noncontact vital sign detection and mobile healthcare applications. A duty-cycled transceiver design is proposed to significantly reduce power consumption of front-end circuits. Occupying 3-to-5 GHz band with four 500 MHz sub-channels, the radar mitigates the narrowband interference (NBI) problem with the frequency hopping scheme. In the time domain, the 螖危 TDC is employed to achieve fine ranging resolution with noise shaped oversampling. The transceiver implemented in 65 nm CMOS consumes 17.2 mW from a 1.0-V supply when duty-cycled and achieves an RMS detection accuracy of 5.68 mm.