TitleA 2.9 GHz Variable Inductor-Based DCO With 1.3 kHz Frequency Resolution for FMCW Radar Applications
AuthorsLi, Heyi
Hao, Xiucheng
Liu, Zexue
Zhang, Zherui
Shen, Zhengkun
Liu, Junhua
Liao, Huailin
AffiliationPeking Univ, Inst Microelect, Beijing 100871, Peoples R China
KeywordsVariable inductor
DCO
FMCW radar
multipurpose applications
Issue Date2019
PublisherIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
AbstractA high-resolution digitally controlled oscillator (DCO) for frequency-modulated continuous-wave radar applications is presented in this brief. The proposed DCO utilizes a variable inductor and linearization correction technique, and cooperates with the multi-stage frequency multipliers to achieve frequency sources at 2.9, 5.8, and 11.6 GHz simultaneously on a single chip. The demonstration of the proposed DCO and frequency multipliers was fabricated in 1P10M 40-nm CMOS technology. Measurement results show that the frequency resolution of the DCO achieves 0.73 to 1.3 kHz over a frequency range of 16.8%, from 2.5 to 2.96 GHz. The phase noise at 1-MHz frequency offset is -127.3 dBc/Hz with 15-mW power consumption. The chip occupies 0.73 mm(2), while the proposed DCO occupies a core area of 0.31 mm(2).
URIhttp://hdl.handle.net/20.500.11897/548655
ISSN1549-7747
DOI10.1109/TCSII.2019.2909520
IndexedSCI(E)
EI
Appears in Collections:信息科学技术学院

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