Intelligent Information Hiding and Multimedia Signal Processing, International Conference on (2008)
Aug. 15, 2008 to Aug. 17, 2008
A 2.9GHz quadrature VCO designed in a 0.18um CMOS process achieves a very wide tuning range of 77% when the supply voltage equals 1.8V. The phase noise is -120dB/Hz at 1MHz offset for the oscillation frequency of 2GHz, and -104dB/Hz at 1MHz offset for the oscillation frequency of 4GHz. The coupled oscillator architecture is adopted to widen tuning range and to minimum phase noise. Accurate quadrature outputs are maintained throughout the entire frequency range, as needed in all modern transceiver architectures.
Quadrature, VCO, CMOS, Wide-band
Yun Zeng, Yan Xie, Yong-hong Yan, Wei Peng, "Wide-Band Low-Noise Quadrature VCO Design", Intelligent Information Hiding and Multimedia Signal Processing, International Conference on, vol. 00, no. , pp. 1217-1220, 2008, doi:10.1109/IIH-MSP.2008.116