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A circuit technique improving the image rejection of RF front-ends

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Author

  • Salvatore Levantino
  • Xiaoyan Wang
  • Pietro Andreani
  • Carlo Samori
  • Andrea Lacaita

Summary, in English

This work presents a technique to reduce the phase errors of quadrature signals. The proposed concept is demonstrated on a 2.4-GHz single-sideband up-converter in a 0.35-/spl mu/m BiCMOS process. The quadrature LO signals are obtained on-chip by means of two coupled oscillators, achieving a figure-of-merit of 186 dB. The image-rejection ratio improves by 7 to 11dB across the 28% LO tuning range with respect to a conventional design. The whole circuit dissipates 47 mW.

Publishing year

2004

Language

English

Pages

368-371

Publication/Series

2004 Symposium on VLSI Circuits, 2004. Digest of Technical Papers.

Document type

Conference paper

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Other

  • ISBN: 0-7803-8287-0