A blocker-tolerant, noise-cancelling receiver suitable for wideband wireless applications

David Murphy*, Hooman Darabi, Asad Abidi, Amr A. Hafez, Ahmad Mirzaei, Mohyee Mikhemar, Mau-Chung Chang

*Corresponding author for this work

Research output: Contribution to journalArticle

191 Scopus citations


A new wideband receiver architecture is proposed that employs two separate passive-mixer-based downconversion paths, which enables noise cancelling, but avoids voltage gain at blocker frequencies. This approach significantly relaxes the trade-off between noise, out-of-band linearity and wideband operation. The resulting prototype in 40 nm is functional from 80 MHz to 2.7 GHz and achieves a 2 dB noise figure, which only degrades to 4.1 dB in the presence of a 0 dBm blocker.

Original languageEnglish
Article number6373765
Pages (from-to)2943-2963
Number of pages21
JournalIEEE Journal of Solid-State Circuits
Issue number12
StatePublished - 11 Dec 2012


  • CMOS
  • LNA
  • Receiver
  • SAW-less
  • blocker
  • linearity
  • mixer-first
  • noise-cancelling
  • non-overlapping clock generation
  • oversampling mixer
  • passive mixer
  • single-ended
  • wideband

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