학술논문

Phase Noise Modeling for Integrated PLLs in FMCW Radar
Document Type
Periodical
Source
IEEE Transactions on Circuits and Systems II: Express Briefs IEEE Trans. Circuits Syst. II Circuits and Systems II: Express Briefs, IEEE Transactions on. 60(3):137-141 Mar, 2013
Subject
Components, Circuits, Devices and Systems
Phase locked loops
Phase noise
Voltage-controlled oscillators
Radar
Frequency modulation
Steady-state
Frequency-modulated continuous-wave (FMCW) radar
frequency synthesizer
phase noise
phase-locked loop (PLL)
Language
ISSN
1549-7747
1558-3791
Abstract
The effect of frequency modulation (FM) on the phase noise spectrum of a charge pump phase-locked loop (PLL) for frequency-modulated continuous-wave (FMCW) radar is investigated. The static phase error is calculated as a function of frequency ramp slope and basic PLL design parameters. The phase noise spectrum under FM is deduced from the spectrum in the steady state. Design guidelines for integrated PLLs to be used in FMCW radar are derived from theoretical considerations and experimental results from the literature.