Abstract
This paper proposes a one-branch zero-IF receiver topology, which samples the I and Q signals of the modulated RF carrier with one signal path by means of a multiphase local oscillator. The suggested one-branch receiver works without matching problem, and it is also capable of cancelling out the flicker noise and DC-offset when the local oscillator is configured to the four-phase mode. The one-branch receiver saves much area and power compared with the traditional two-branch ones. All of the advantages above make the one-branch receiver topology a promising architectural candidate for low-power and low-cost RF CMOS receiver designs.
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Supported by National Natural Science Foundation of China(No.60576026).
LI Jincheng, born in 1967, male, Dr, associate Prof.
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Li, J., Qiu, Y. One-branch zero-IF wireless receiver topology with multiphase local oscillator. Trans. Tianjin Univ. 16, 109–113 (2010). https://doi.org/10.1007/s12209-010-0019-0
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DOI: https://doi.org/10.1007/s12209-010-0019-0