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This letter proposes a frequency modulated continuous wave radar transceiver chip and a method to position objects as well as detect human limb motions. Implemented in 65-nm CMOS, the chip presents 2-GHz bandwidth centered at 15 GHz and consumes only 210 mW, with performance among the best of the state of the art. Using the chip, imaging experiments for moving targets and human arm raisings are carried out. In addition, the demonstration of both object positioning and human limb-motion detection by the FMCW radar mode is believed to be the first time. This letter is beneficial for navigation systems, surveillance applications, and more.
Wang et al. (Wed,) studied this question.