A 19 GHz Linear-Wide-Tuning-Range Quadrature Ring Oscillator in 130 nm CMOS for Non-Contact Vital Sign Radar Application

作者：Li Changzhi^*; Lin Jenshan

来源：IEEE Microwave and Wireless Components Letters, 2010, 20(1): 34-36.

DOI：10.1109/LMWC.2009.2035961

• CMOS
• linear-tuning
• low-power
• non-contact
• quadrature
• radar
• Ring oscillator
• vital sign

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.

• 出版日期2010-1