Title :
A 19 GHz CMOS Signal Generator for 77 GHz FMCW Radars
Author :
Yi-Keng Hsieh ; Liang-Hung Lu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
This letter presents a novel architecture of signal source suitable for the 77 GHz frequency-modulated continuous-wave (FMCW) radar transceiver. By using a conventional 19 GHz integer- N phase-locked loop (PLL) with a frequency modulation loop, the required 19 GHz sinusoidal signal and 19-19.5 GHz FMCW frequency chirp can be generated simultaneously without excessive hardware overhead. Fabricated in a standard 65 nm CMOS process, the proposed circuit consumes a dc power of 68 mW from a supply voltage of 1.2 V.
Keywords :
CMOS integrated circuits; CW radar; FM radar; field effect MMIC; millimetre wave radar; phase locked loops; radar equipment; signal generators; transceivers; CMOS signal generator; FMCW frequency chirp; FMCW radars; PLL; frequency 19 GHz; frequency 77 GHz; frequency modulation loop; frequency-modulated continuous-wave radar transceiver; integer-N phase-locked loop; power 68 mW; signal source architecture; size 65 nm; voltage 1.2 V; CMOS integrated circuits; Chirp; Frequency modulation; Phase locked loops; Radar; Signal generators; Transceivers; Frequency chirp; frequency-modulated continuous-wave (FMCW) radar; phase-locked loop (PLL);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2309088
