A wideband linearisation technique for non–linear oscillators using a multi–stage polyphase filter

@article{Ranter1999AWL,
  title={A wideband linearisation technique for non–linear oscillators using a multi–stage polyphase filter},
  author={C. De Ranter and M. Borremans and Michiel S. J. Steyaert},
  journal={Proceedings of the 25th European Solid-State Circuits Conference},
  year={1999},
  pages={214-217}
}
This paper presents a wideband technique to suppress the 3rd, 7th, 11th... order harmonic signal components of non-linear quadrature oscillator signals. To accomplish this, a polyphase filter is used. The fundamental signal passes through, while the (4.i-1)th harmonics are filtered out. Based on complex signal theory, this filtering operation is mathematically derived. The theory has been proven by CMOS implementation of a digital oscillator, a polyphase filter and direct up-conversion mixers… CONTINUE READING

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