A <12mW, 0.7-3.2GHz receiver with resonant multi-phase LO and current reuse harmonic rejection baseband

Caroline Andrews, Luke Diamente, Ben Johnson, Alyosha Molnar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

We present a wide tuning range passive mixer-first receiver with resonant non-overlapping LO drive and noise-power optimized multi-path baseband amplifier. The receiver consumes 10-12mW (including VCOs, pulse generation and baseband) over a frequency range of 0.7-3.2GHz with a 1.3V supply. An LO generation architecture generates a 12.5% duty cycle resonant clock from standard complementary LC-tank VCOs. A capacitor sharing technique on the baseband side of the mixer doubles the RX frequency range of the 8-phase clock, achieving a NF as low as 7dB. The 1.8mW low noise baseband amplifier reuses the bias current of its four input channels while rejecting the 3 rd/5 th harmonics by >34dB.

Original languageEnglish
Title of host publication2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012 - Digest of Papers
Pages43-46
Number of pages4
DOIs
StatePublished - 2012
Event2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012 - Montreal, QC, Canada
Duration: 17 Jun 201219 Jun 2012

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)1529-2517

Conference

Conference2012 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2012
Country/TerritoryCanada
CityMontreal, QC
Period17/06/1219/06/12

Keywords

  • harmonic mixing
  • harmonic rejection
  • mixer
  • multi-phase
  • multi-phase clock
  • out-of-band interference
  • passive mixer
  • receiver
  • SAW-less
  • software-defined radio (SDR)
  • switching receiver
  • wideband receiver

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