Title :
PLL Architecture for 77-GHz FMCW Radar Systems with Highly-Linear Ultra-Wideband Frequency Sweeps
Author :
Wagner, Christoph ; Stelzer, Andreas ; Jäger, Herbert
Author_Institution :
Johannes Kepler Univ., Linz
Abstract :
The successful implementation of a linear frequency modulated continuous wave (FMCW) radar transmitter is presented, consisting of a 77-GHz voltage controlled oscillator (VCO) and a 19-GHz down-converter manufactured in a 200-GHz silicon germanium (SiGe) technology. The influence of phase noise and frequency sweep linearity on the radar system performance is briefly described, and measurement results of these parameters are compared between different architectures
Keywords :
CW radar; FM radar; Ge-Si alloys; millimetre wave oscillators; phase locked loops; phase noise; radar transmitters; road vehicle radar; voltage-controlled oscillators; 19 GHz; 200 GHz; 77 GHz; FMCW radar systems; FMCW radar transmitter; PLL architecture; SiGe; chirp radar; linear frequency modulated continuous wave radar transmitter; phase locked loop; phase noise; road vehicle radar; ultra-wideband frequency sweeps; voltage controlled oscillator; Chirp modulation; Frequency modulation; Germanium silicon alloys; Manufacturing; Phase locked loops; Radar; Silicon germanium; Transmitters; Ultra wideband technology; Voltage-controlled oscillators; chirp radar; radar transmitters; road vehicle radar;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249555
