A Coherent 7-9 GHz CMOS UWB Radar Transceiver for Human Detection Application

In this paper, a fully integrated 7-9 GHz UWB radar sensor for human detect, application is presented using the 0.13 mu m CMOS technology. For high resolution and long detection range, the receiver using the equivalent time sampling method and the mixer with reference LO is adopted. Also, carrier-based transmitter can be digitally tuned for center frequency and bandwidth. Human detection range is expected up to 5.7 m. The chip size is 2.8 x 2 mm(2), and current consumption is 96mW at 1.2V supply voltage.