Technique for fast triangular chirp modulation in FMCW PLL
نویسندگان
چکیده
Frequency-modulated continuous-wave (FMCW) radars necessitate fast frequency modulation. However, finite loop bandwidth of a phase-locked (PLL) limits the accuracy This paper proposes phase compensation (PC) technique to address this limitation. The synthesizer PLL with PC realizes and precise triangular chirp modulation by adding compensating square wave before integral path filter. is designed in 130-nm SiGe BiCMOS technology. Simulation results show rms error improvement 18 times over conventional 2.56GHz 20µs period at 94GHz.
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2022
ISSN: ['1349-2543', '1349-9467']
DOI: https://doi.org/10.1587/elex.19.20220214