International Journal of Analog Integrated Circuits and Signal Processing, Volume 35, Issue 1, April 1, 2003, pages 9-23. Springer:Copyright © 2003 Springer. The original publication is available at http://dx.doi.org/10.1023/A:1023465202350.
NOTE: At the time of publication, the author Vladimir Prodanov was not yet affiliated with Cal Poly.
Zero-if transceivers suffer from the imbalance of the I and Q paths. By using a complex low-pass filter topology instead of a conventional pair of real low-pass filters, this imperfection can be reduced. Both analytical and numerical analysis show that the proposed technique is significantly more robust to circuit imperfections than the traditional architecture.
Electrical and Computer Engineering