Title :
A 1–9 GHz Linear-Wide-Tuning-Range Quadrature Ring Oscillator in 130 nm CMOS for Non-Contact Vital Sign Radar Application
Author :
Li, Changzhi ; Lin, Jenshan
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA
Abstract :
A 1-9 GHz linear-wide-tuning-range quadrature ring oscillator has been designed and fabricated in UMC 0.13 ??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.
Keywords :
CMOS integrated circuits; MMIC oscillators; UHF oscillators; circuit tuning; field effect MMIC; integrated circuit design; radar equipment; voltage-controlled oscillators; UMC CMOS process; VCO; clock recovery application; frequency 1 GHz to 9 GHz; linear-wide-tuning-range quadrature ring oscillator; low power consumption; noncontact vital sign radar sensor; printed circuit board; size 130 nm; ultra-wideband impulse radio application; voltage controlled oscillator; CMOS; Ring oscillator; linear-tuning; low-power; non-contact; quadrature; radar; vital sign;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2035961
