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A method to reduce the phase noise in bipolar transistor circuits

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3 Author(s)
K. Takagi ; Dept. of Electron., Kyushu Inst. of Technol., Kitakyushu, Japan ; S. Serikawa ; T. Doi

We measured the phase and amplitude noises and their correlation coefficient in the collector current. The noise-generating mechanism due to the diffusion coefficient fluctuation in the base is discussed, using the distributed constant circuit model. A possible noise reduction method is proposed, using the correlation between the phase and amplitude noises

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IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing  (Volume:45 ,  Issue: 11 )