High dynamic range Ku-band CMOS transceiver IC for FMCW radar application

Paper presents a Ku-band FMCW radar transceiver IC realized in 0.13 pm CMOS processes. In the radar receiver, a sensitivity time control using a DC offset cancellation feedback loop is employed, which preserves the receiver's SNR not depending on the distance. The radar receiver achieves the full chain gain of 82 dB, P1dB of -2.0 dBm at the minimum gain, and noise figure of 7.9 dB with 106 dB dynamic range. The measured result of the radar transmitter reveals 9 dBm output power. The radar transceiver consumes 115 mA from a 1.2-V power supply. With the aid of an external PLL, the Ku-band FMCW radar module is implemented and verified radar function by measuring the distance of various objects.