A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology

Yusuke Takigawa; Hiroshi Ohta; Qing Liu; Satoshi Kurachi; Nobuyuki Itoh; Toshihiko Yoshimasu

doi:10.1109/RFIC.2009.5135495

A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology

Yusuke Takigawa^*, Hiroshi Ohta, Qing Liu, Satoshi Kurachi, Nobuyuki Itoh, Toshihiko Yoshimasu

^*Corresponding author for this work

Graduate School of Information, Production and Systems

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

28 Citations (Scopus)

Abstract

A novel resonant circuit consisting of transformer-based variable inductors and MOS varactors is proposed to implement an ultra-wideband voltage-controlled-oscillator (VCO). The VCO is designed and fabricated using 0.13 μm CMOS, and fully evaluated on wafer. The VCO IC exhibits a frequency tuning range as high as 92.6 % spanning from 1.2 GHz to 3.27 GHz. The measured phase noise of -120 dBc/Hz at 1 MHz offset from the 3.1 GHz carrier is obtained.

Original language	English
Title of host publication	Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009
Pages	83-86
Number of pages	4
DOIs	https://doi.org/10.1109/RFIC.2009.5135495
Publication status	Published - 2009 Nov 6
Event	2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009 - Boston, MA, United States Duration: 2009 Jun 7 → 2009 Jun 9

Publication series

Name	Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)	1529-2517

Conference

Conference	2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009
Country/Territory	United States
City	Boston, MA
Period	09/6/7 → 09/6/9

Keywords

CMOS
VCO
Variable inductor
Wide-tuning range

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1109/RFIC.2009.5135495

Cite this

Takigawa, Y., Ohta, H., Liu, Q., Kurachi, S., Itoh, N., & Yoshimasu, T. (2009). A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology. In Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009 (pp. 83-86). [5135495] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2009.5135495

A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology. / Takigawa, Yusuke; Ohta, Hiroshi; Liu, Qing et al.

Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009. 2009. p. 83-86 5135495 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takigawa, Y, Ohta, H, Liu, Q, Kurachi, S, Itoh, N & Yoshimasu, T 2009, A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology. in Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009., 5135495, Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, pp. 83-86, 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009, Boston, MA, United States, 09/6/7. https://doi.org/10.1109/RFIC.2009.5135495

Takigawa Y, Ohta H, Liu Q, Kurachi S, Itoh N, Yoshimasu T. A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology. In Proceedings of the 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009. 2009. p. 83-86. 5135495. (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). doi: 10.1109/RFIC.2009.5135495

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abstract = "A novel resonant circuit consisting of transformer-based variable inductors and MOS varactors is proposed to implement an ultra-wideband voltage-controlled-oscillator (VCO). The VCO is designed and fabricated using 0.13 μm CMOS, and fully evaluated on wafer. The VCO IC exhibits a frequency tuning range as high as 92.6 % spanning from 1.2 GHz to 3.27 GHz. The measured phase noise of -120 dBc/Hz at 1 MHz offset from the 3.1 GHz carrier is obtained.",

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AU - Itoh, Nobuyuki

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AB - A novel resonant circuit consisting of transformer-based variable inductors and MOS varactors is proposed to implement an ultra-wideband voltage-controlled-oscillator (VCO). The VCO is designed and fabricated using 0.13 μm CMOS, and fully evaluated on wafer. The VCO IC exhibits a frequency tuning range as high as 92.6 % spanning from 1.2 GHz to 3.27 GHz. The measured phase noise of -120 dBc/Hz at 1 MHz offset from the 3.1 GHz carrier is obtained.

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A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology

Abstract

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