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

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

23 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 languageEnglish
Title of host publicationDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Pages83-86
Number of pages4
DOIs
Publication statusPublished - 2009
Event2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009 - Boston, MA
Duration: 2009 Jun 72009 Jun 9

Other

Other2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009
CityBoston, MA
Period09/6/709/6/9

Fingerprint

Varactors
Variable frequency oscillators
Tuning
Resonant circuits
Phase noise
Ultra-wideband (UWB)

Keywords

  • CMOS
  • Variable inductor
  • VCO
  • Wide-tuning range

ASJC Scopus subject areas

  • Engineering(all)

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 Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium (pp. 83-86). [5135495] 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; Kurachi, Satoshi; Itoh, Nobuyuki; Yoshimasu, Toshihiko.

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium. 2009. p. 83-86 5135495.

Research output: Chapter in Book/Report/Conference proceedingConference 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 Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium., 5135495, pp. 83-86, 2009 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2009, Boston, MA, 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 Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium. 2009. p. 83-86. 5135495 https://doi.org/10.1109/RFIC.2009.5135495
Takigawa, Yusuke ; Ohta, Hiroshi ; Liu, Qing ; Kurachi, Satoshi ; Itoh, Nobuyuki ; Yoshimasu, Toshihiko. / A 92.6 % tuning range VCO utilizing simultaneously controlling of transformers and MOS varactors in 0.13 μm CMOS technology. Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium. 2009. pp. 83-86
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