A 90-nm CMOS 144 GHz injection locked frequency divider with inductive feedback

Hyogi Seo, Seungwoo Seo, Jongwon Yun, Jae Sung Rieh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper presents a 144 GHz divide-by-2 injection locked frequency divider (ILFD) with inductive feedback developed in a commercial 90-nm Si RFCMOS technology. It was demonstrated that division-by-2 operation is achieved with input power down to -12 dBm, with measured locking range of 0.96 GHz (144.18 - 145.14 GHz) at input power of -3 dBm. To the authors' best knowledge, this is the highest operation frequency for ILFD based on a 90- nm CMOS technology. From supply voltage of 1.8 V, the circuit draws 5.7 mA including both core and buffer. The fabricated chip occupies 0.54 mm × 0.69 mm including the DC and RF pads.

Original languageEnglish
Pages (from-to)190-197
Number of pages8
JournalJournal of Semiconductor Technology and Science
Volume11
Issue number3
DOIs
Publication statusPublished - 2011 Sep

Keywords

  • Frequency divider
  • Inductive feedback
  • Injection locked frequency divider
  • LC oscillator
  • RF CMOS
  • THz

ASJC Scopus subject areas

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

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