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

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�...

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Bibliographic Details
Published in2022 IEEE International Symposium on Circuits and Systems (ISCAS) pp. 1853 - 1857
Main Authors Zolkov, Erez, Cohen, Emanuel
Format Conference Proceeding
LanguageEnglish
Published IEEE 28.05.2022
Subjects
cmos
Degradation
Impedance matching
Linear systems
Linearity
mixer-first receiver
n-path
quadrature hybrid
Receivers
Semiconductor device modeling
Simulation
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Summary: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.
ISSN:2158-1525
DOI:10.1109/ISCAS48785.2022.9937642