← 返回 JSSC 论文列表JSSC 2023第9期RF & Wireless65nm
A Highly Accurate and Sensitive mmWave Displacement-Sensing Doppler Radar With a
一种高精度毫米波多普勒雷达，用于位移和振动传感，消除检测零点。
65nm CMOS, 39GHz, 110mW, 4µm静态精度, 39nm振动灵敏度(10kHz)
毫米波雷达多普勒雷达位移传感振动传感CMOS
▸采用边缘驱动相位解调器(EDPD)处理整流方波信号，消除检测零点
▸通过共参考子采样锁相环(SSPLL)实现相干解调和信号生成
▸无需正交解调即可实现超高位移测量精度和灵敏度
Abstract
A 110-mW 39-GHz Doppler radar front end
in 65-nm CMOS for displacement and vibration sensing is
proposed. Conventional Doppler radar suffers from detection
nulls, at which the receiver detection gain drops to zero.
Quadrature demodulation for either carrier frequency or
intermediate frequency (IF) is necessary to alleviate nulls
but still induces nonlinear detection gain that needs to be
compensated through digital signal processing (DSP). In this
article, a Doppler radar topology is proposed to