A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar

Jen Hao Cheng, Ming Hang Wu, Hsiang Ting Huang, Yi Ming Wu, Jeng-Han Tsai, Tian Wei Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, a low-power K-band phase-locked loop (PLL) for vital sign detection radar (VSDR) is presented. The proposed PLL was fabricated in 0.18 μm CMOS process. The transformer-feedback voltage-controlled oscillator (TF-VCO) is utilized to increase output swing and to alleviate noise issue. The cascoded frequency divider is adopted for low voltage and low power considerations. The measured phase-locked-loop phase noise at 20.2 GHz is -110 dBc/Hz at 10 MHz offset frequency and the corresponding reference spur is -58 dBc. The locking range covers a frequency band from 19.2-20.6 GHz. The PLL dissipated 38 mW (with buffers) at 1.8-V supply voltage and occupies the chip area of 0.46 mm2.

Original languageEnglish
Title of host publicationConference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on
Subtitle of host publicationRF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479954476
DOIs
Publication statusPublished - 2015 Feb 5
Event2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014 - London, United Kingdom
Duration: 2014 Dec 82014 Dec 10

Publication series

NameConference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014

Other

Other2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014
CountryUnited Kingdom
CityLondon
Period14/12/814/12/10

Fingerprint

Radar
Vital Signs
Phase locked loops
Noise
Buffers
Technology
Variable frequency oscillators
Electric potential
Phase noise
Frequency bands
Feedback

Keywords

  • K-band
  • Phase-locked loop (PLL)
  • transformerfeedback
  • voltage-controlled oscillator (VCO)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Health Informatics

Cite this

Cheng, J. H., Wu, M. H., Huang, H. T., Wu, Y. M., Tsai, J-H., & Huang, T. W. (2015). A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar. In Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014 [7032400] (Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IMWS-BIO.2014.7032400

A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar. / Cheng, Jen Hao; Wu, Ming Hang; Huang, Hsiang Ting; Wu, Yi Ming; Tsai, Jeng-Han; Huang, Tian Wei.

Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014. Institute of Electrical and Electronics Engineers Inc., 2015. 7032400 (Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cheng, JH, Wu, MH, Huang, HT, Wu, YM, Tsai, J-H & Huang, TW 2015, A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar. in Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014., 7032400, Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014, Institute of Electrical and Electronics Engineers Inc., 2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014, London, United Kingdom, 14/12/8. https://doi.org/10.1109/IMWS-BIO.2014.7032400
Cheng JH, Wu MH, Huang HT, Wu YM, Tsai J-H, Huang TW. A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar. In Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014. Institute of Electrical and Electronics Engineers Inc. 2015. 7032400. (Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014). https://doi.org/10.1109/IMWS-BIO.2014.7032400
Cheng, Jen Hao ; Wu, Ming Hang ; Huang, Hsiang Ting ; Wu, Yi Ming ; Tsai, Jeng-Han ; Huang, Tian Wei. / A K-band phase-locked loop in 0.18 μm CMOS technology for vital sign detection radar. Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014. Institute of Electrical and Electronics Engineers Inc., 2015. (Conference Proceedings - 2014 IEEE MTT-S International Microwave Workshop Series on: RF and Wireless Technologies for Biomedical and Healthcare Applications, IMWS-Bio 2014).
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AB - In this paper, a low-power K-band phase-locked loop (PLL) for vital sign detection radar (VSDR) is presented. The proposed PLL was fabricated in 0.18 μm CMOS process. The transformer-feedback voltage-controlled oscillator (TF-VCO) is utilized to increase output swing and to alleviate noise issue. The cascoded frequency divider is adopted for low voltage and low power considerations. The measured phase-locked-loop phase noise at 20.2 GHz is -110 dBc/Hz at 10 MHz offset frequency and the corresponding reference spur is -58 dBc. The locking range covers a frequency band from 19.2-20.6 GHz. The PLL dissipated 38 mW (with buffers) at 1.8-V supply voltage and occupies the chip area of 0.46 mm2.

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