A 1-9 GHz linear-wide-tuning-range quadrature ring oscillator in 130 nm CMOS for non-contact vital sign radar application

Changzhi Li, Jenshan Lin

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

A 19 GHz linear-wide-tuning-range quadrature ring oscillator has been designed and fabricated in UMC 0.13 μ m CMOS process. The chip was wire-bonded on printed circuit board and tested, showing a liner tuning range from 1 GHz to 9 GHz. Comparative study with other differential ring oscillators demonstrates the advantages of this design in low power consumption and linear-tuning. The oscillator was designed as the voltage controlled oscillator (VCO) for a non-contact vital sign radar sensor. It can also be used for other applications such as ultra-wideband (UWB) impulse radio and clock recovery in broadband optical communications.

Original languageEnglish
Article number5340699
Pages (from-to)34-36
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume20
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • CMOS
  • Linear-tuning
  • Low-power
  • Non-contact
  • Quadrature
  • Radar
  • Ring oscillator
  • Vital sign

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