A 60-GHz injection-locked frequency divider using multi-order LC oscillator topology for wide locking range

Keita Takatsu, Hirotaka Tamura, Takuji Yamamoto, Yoshiyasu Doi, Koichi Kanda, Takayuki Shibasaki, Tadahiro Kuroda

Research output: Contribution to journalArticle

Abstract

A 60-GHz injection-locked frequency divider (ILFD) is presented. A multi-order LC oscillator topology is proposed to enhance the locking range of the divider. A design guideline is described based on a theoretical analysis of the locking range enhancement. A test chip is fabricated in 65 nm CMOS. Measured locking range with 0 dBm input power is 48.5-62.9 GHz (25.9%), which is 63.6% wider compared to the previously reported ILFD. Power consumption excluding buffers and biasing circuits is 1.65mW from 1.2V supply. The core ILFD area is 0.0157mm2 even with an extra pair of inductors.

Original languageEnglish
Pages (from-to)1049-1052
Number of pages4
JournalIEICE Transactions on Electronics
VolumeE94-C
Issue number6
DOIs
Publication statusPublished - 2011 Jun

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Buffers
Electric power utilization
Topology
Networks (circuits)

Keywords

  • 60-GHz
  • CMOS
  • ILFD
  • Locking range
  • Multi-order LC oscillator

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

A 60-GHz injection-locked frequency divider using multi-order LC oscillator topology for wide locking range. / Takatsu, Keita; Tamura, Hirotaka; Yamamoto, Takuji; Doi, Yoshiyasu; Kanda, Koichi; Shibasaki, Takayuki; Kuroda, Tadahiro.

In: IEICE Transactions on Electronics, Vol. E94-C, No. 6, 06.2011, p. 1049-1052.

Research output: Contribution to journalArticle

Takatsu, Keita ; Tamura, Hirotaka ; Yamamoto, Takuji ; Doi, Yoshiyasu ; Kanda, Koichi ; Shibasaki, Takayuki ; Kuroda, Tadahiro. / A 60-GHz injection-locked frequency divider using multi-order LC oscillator topology for wide locking range. In: IEICE Transactions on Electronics. 2011 ; Vol. E94-C, No. 6. pp. 1049-1052.
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