A 77/79-GHz Frequency Generator in 16-nm CMOS for FMCW Radar Applications Based on a 26-GHz Oscillator with Co-Generated Third Harmonic

Conference paper (2019)

Authors

Feng-Wei Kuo Taiwan Semiconductor Manufacturing Company (TSMC)
Z. Zong Electronics - EEMCS
R Chen Taiwan Semiconductor Manufacturing Company (TSMC)
Lan-Chou Cho Taiwan Semiconductor Manufacturing Company (TSMC)
Chewn-Pu Jou Taiwan Semiconductor Manufacturing Company (TSMC)
Mark Chen Taiwan Semiconductor Manufacturing Company (TSMC)
R.B. Staszewski Electronics - EEMCS , University College Dublin
Research Group
Electronics (EEMCS) (TU Delft)
Copyright: © 2019 Feng Wei Kuo, Z. Zong, Huan Neng Ron Chen, Lan Chou Cho, Chewn Pu Jou, Mark Chen, R.B. Staszewski
DOI
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https://doi.org/10.1109/ESSCIRC.2019.8902490
FMCW Oscillator Automotive radar DCO Phase noise 77 GHz Common mode Harmonic boost Tuning range
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Published Date

01-09-2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronics

Abstract

This paper presents a digitally controlled frequency generator for dual frequency-band radar system that is optimized for 16 nm FinFET CMOS. It is based on a 21% wide tuning range,fine-resolution DCO with only switchable metal capacitors. A third-harmonic boosting DCO simultaneously generates 22.5-28 GHz and sufficiently strong 68-84 GHz signals to satisfy short-range radar (SRR) and medium/long range radar (M/LRR) requirements. The 20.2 mW DCO emits -97 dBc/Hz at 1 MHz offset from 77 GHz,while fully satisfying metal density rules. It occupies 0.07 mm2,thus demonstrating both 43% power and 47% area reductions. The phase noise and FoMT (figure-of-merit with tuning range) are improved by 1.8 dB and 0.2 dB,respectively,compared to state-of-the-art.