Current Reusing VCO and Divide-by-Two Frequency Divider for Quadrature LO Generation

@article{Park2008CurrentRV,
  title={Current Reusing VCO and Divide-by-Two Frequency Divider for Quadrature LO Generation},
  author={Kyung-Gyu Park and Chan-Young Jeong and Jae-Woo Park and Jang-Woo Lee and Jun-Gi Jo and Changsik Yoo},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2008},
  volume={18},
  pages={413-415}
}
For low-power and accurate quadrature local oscillator (LO) signal generation, an LC-tank voltage controlled oscillator (VCO) operating at double the required LO-frequency reuses the bias current of divide-by-two frequency divider. The current reusing VCO and divide-by-two frequency divider are targeted to generate the LO signals for a 1.57 GHz global positioning system receiver. Implemented in a 0.18 mum CMOS technology, the current reusing VCO and divide-by-two frequency divider consumes 1… CONTINUE READING
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