A 12-GHz Calibration-Free All-Digital PLL for FMCW Signal Generation With 78 MHz/μs Chirp Slope and High Chirp Linearity

Shen, Zhengkun; Jiang, Haoyun; Li, Heyi; Zhang, Zherui; Yang, Fan; Liu, Junhua; Liao, Huailin

doi:10.1109/tcsi.2020.3004363

Cited by 19 publications

(2 citation statements)

References 29 publications

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“…Frequency-modulated continuous-wave is one of the most important waveforms for millimeter wave radars designing, 1,17 which means the divider rations of the PLL are not constant. In this application, transistor level simulation will be almost impossible; however, the ED model will be effective and precise.…”

Section: Fmcw Simulationmentioning

confidence: 99%

An event‐driven model of fractional‐N CPPLLbasedFMCWsynthesizers

Li,

Mawuli,

Xing

et al. 2023

Int J Numerical Modelling

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This paper proposes an improved event‐driven (ED) model to improve the simulation efficiency of a mixed‐signal charge‐pump phase locked loop (CP‐PLL) design for a frequency‐modulated continuous‐wave (FMCW) chirp generation. The improvement mainly comes into three parts. First, we update the data only when it changes during the previous trigger. Second, we save the data at the triggering moment of the reference clock to achieve uniform sampling for better noise characterization. Furthermore, we propose a simplified model that is specifically optimized for the third‐order loop filter (LF). This article presents a detailed design flow of the improved ED model, and we apply it to the simulation of the FMCW chirp generation. Compared to the conventional transistor‐level simulation, our proposed model reduces the simulation time to less than 1 s, which leads to a reduction of the simulation time by five or six orders of magnitude.

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Section: Fmcw Simulationmentioning

confidence: 99%

An event‐driven model of fractional‐N CPPLLbasedFMCWsynthesizers

Li,

Mawuli,

Xing

et al. 2023

Int J Numerical Modelling

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show abstract

“…Frequency modulation can be achieved by varying the feedback frequency divider ratio in a fractional-N PLL [18][19][20][21][22][23][24][25] , as shown in Fig. 5.…”

Section: Fmcw Pll With One-point Modulation Schemementioning

confidence: 99%