A Quadrature Hybrid Transimpedance-Amplifier-Based Mixer-First Receiver

Erez Zolkov, Emanuel Cohen

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


A mixer-first receiver (MFRX) that breaks the baseband (BB) input linearity, matching, and noise trade-off is proposed. The MFRX is composed of a quadrature hybrid and two identical transimpedance (TIA) based MFRXs, with a noiseless antenna matching achieved by placing a termination at the hybrid's isolated port. The receiver (RX) performance is analyzed utilizing a linear time-invariant (LTI) model and a comparison to previous approaches is presented. A TSMC 65nm CMOS design is presented as a proof of concept. Simulation results show superior performance over voltage-mode topologies of MFRXs in merits of in-band (IB) and out-of-band (OOB) linearity at the cost of power and area, with almost no noise penalty.

Original languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems, ISCAS 2022
Number of pages5
ISBN (Electronic)9781665484855
StatePublished - 2022
Event2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022 - Austin, United States
Duration: 27 May 20221 Jun 2022

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems


Conference2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022
Country/TerritoryUnited States


  • cmos
  • mixer-first receiver
  • n-path
  • quadrature hybrid

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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