A 20-30 GHz divide-by-3 ring-oscillator-based injection locked frequency divider with a wide locking range

Seungwoo Seo, Hyogi Seo, Sanggeun Jeon, Jae-Sung Rieh

Research output: Contribution to journalArticle

4 Citations (Scopus)


A 20-30 GHz divide-by-3 ring-based injection locked frequency divider (ILFD) using NMOS loads for a wide locking range has been developed in a commercial 0.13-μm Si RFCMOS technology.The ILFD shows a locking range up to 7.5 GHz (20.8-28.3 GHz, 30.5%) and operation range of 10 GHz (20.8-30.8 GHz, 38.8%) with DC power consumption of 13 mW and a 1.5 V supply voltage. The fabricated circuit occupies only 0.008 mm2 core area.

Original languageEnglish
Pages (from-to)839-841
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number4
Publication statusPublished - 2011 Apr 1



  • frequency divider
  • injection-locking
  • locking range

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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